Speaker: Dr. Miwa Takahashi, CERC Postdoctoral Fellow, Environomics Future Science Platform, NCMI  |  CSIRO 

Hosted by: Professor Timothy Ravasi, OIST Marine Climate Change Unit

Abstract: Environmental DNA (eDNA) has emerged as a powerful monitoring tool for species detection and distribution mapping, with a remarkable surge in activity over the past decade. Metabarcoding studies have generated millions of DNA sequences with taxonomic assignments, while species-specific eDNA assays have produced comprehensive distribution maps for hundreds of taxa. (...)

Speaker: Dr. Shreyas Mandre

University Associate Professor of Fluid-Structure Interaction, Department of Engineering, University of Cambridge

Hosted by: Professor Mahesh Bandi, Nonlinear and Non-equilibrium Physics Unit

When physical processes repeat over either growing or shrinking scales (length and/or time), the dynamics shows self-similarity. The condition of self-similarity appears strict, but it is the building block of mathematical modelling. This lecture covers (i) concept of scale invariance as a pre-requisite for self-similarity, (ii) self-similarity in physical systems and mathematical models, (iii) the two kinds of self-similarity -- the first and second kinds, and (iv) a simple mathematical example to elucidate the second kind of self-similarity. The lecture presents examples from fluid dynamics. No previous knowledge of or experience with scale-invariance or self-similarity is assumed.

PhD Thesis Public Presentation

Sachie Yukawa

3D printed complex microoptics: Fundamentals and first benchmark applications - come learn how to "print" optical elements!

Speaker: Professor Luiza Angheluta-Bauer, Condensed Matter Physics, University of Oslo

Hosted by Professor Mahesh Bandi Nonlinear and Non-equilibrium Physics Unit

Abstract:

Collective structural arrangements and cell migration are important physical processes underlying tissue development and regeneration. Understanding the complexity of cell-cell interactions and the emergence of collective behaviors at the tissue scale presents formidable challenges both experimentally and theoretically.

In this talk, I will discuss recent theoretical work on the dynamical patterns that emerge at the tissue scale from localized rearrangements and topological defects. Using a multi-phase field model, we demonstrate that tissue fluidity stems from cell neighbor exchanges, serving as transient sources of vortical flow. This flow emerges from the relative dispersion of cells at a rate proportional to the frequency of rearrangements. Balancing collective migration with relative cell motion appears to be essential for maintaining tissue shape and fluidity. Using a cell-based model, we study the tissue's response to the presence of a vortex. While solid-like behavior tends toward conical shapes, localized fluidization triggers the transition to a tube, which is fundamental in biological tissues.

Prof. Dr. Myung Hee Kim

Korea Research Institute of Bioscience and Biotechnology

COI Team Announces Call for New Projects! Seeking initiatives aligned with our core themes—Healthy Mind, Healthy Body, and Healthy Environment. Encouraging proposals with tangible outcomes for a real impact.

Nov 21 - Dec 01 Laurin Ostermann (Senior Scientist, University of Innsbruck, Austria)

Nov 21 - Dec 08 Karol Gietka (Postdoc, University of Innsbruck, Austria)

Nov 20 - Nov 24 Lewis Ruks (Postdoc, NTT Basic Research Labs)