Previous events - Page 46

PhD candidate Clara Antonia Klöcker at the Department of Biosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis 'On the move - The movement ecology of sharks in high-latitude waters and beyond' for the degree of PhD.

Mathematics and physics are two disciplines separated by a common language.  Since the 1990s, we have been developing curricular materials that attempt to bridge this gap, as part of the Paradigms in Physics and Vector Calculus Bridge projects, leading also to the development of an online textbook. 

Most of our work focuses on the transition from multivariable calculus to upper-division physics courses such as electromagnetism.

Characterizing the immune system of the Atlantic cod, which naturally lacks the MHC II pathway

What happened the last time we encountered rapid climate change? How did natural and social environments interact during this Little Ice Age (ca. 1300-1850)?

Doctoral candidate Inga Lena Schmidtke at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis "Investigations into transition metal complex reactivity - A computational perspective on C-H and C=C bond activation reactions" for the degree of Philosophiae Doctor.

This week, Wojciech Jankowski from the University of Cambridge will tell us about his work on topological and geometrical effects in quantum matter.

Welcome to the Hammer Talks lunch seminar Thursday 24th of April at Dept. of Geosciences, UiO. Speaker: Lala Mammadova.

Doctoral candidate Amandine Kaiser at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis Exploring stable atmospheric boundary layer regimes: A stochastic perspective for the degree of Philosophiae Doctor.

Doctoral candidate Jack William Whattam at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis Volcanic evolution in continental-rift settings: New constraints from the eruptive and compositional evolution of volcanism in the Oslo Rift for the degree of Philosophiae Doctor.

In this talk, I will present a joint work with Matilde Manzaroli. I will introduce real tori (in the greater generality) as well as real equivariant torus embeddings. Then I will describe the structure of the torus orbits. It will allow us to easily compute the Betti numbers of the real loci of smooth real equivariant torus embeddings, provided that those real loci are compact. Then I will present a canonical "foliation" of their real loci by equivariant embeddings of split tori. I will express a necessary and sufficient condition for this foliation to be given by the fibre of a fibre bundle, and explain how to reduce to this case by performing toric blow-ups.

The Influence of Choline Supplement on Cold Survival in Caenorhabditis elegans

Patrick is a Professor and Directior of Undergraduate Studies at the university of Minesota

This week, Francesco Pietro Massel from USN will tell us about the use of using mechanical oscillators coupled to qubits for quantum technology: 

By Dr. Steven E. Campana from Department of Life and Environmental Sciences, University of Iceland, Reykjavik, Iceland

Katarzyna Michałowska will defend her thesis "Physics-Informed Machine Learning for Scientific and Industrial Applications" for the degree of Philosophiae Doctor at the University of Oslo, Faculty of Mathematics and Natural Sciences.

By Gustaf Hugelius, Stockholm University; Bolin Center for Climate Research

Dynamic wetting phenomena are present in many everyday situations where liquids interact with surfaces. Understanding and controlling the dynamics of droplets wetting solid surfaces is important in various applications such as boiling and condensation heat transfer, printing and coating, and microfluidic processes. However, modeling their dynamics is not easy because they are multiscale systems in which the advancing or receding of a nanoscale-thick contact line is linked to the behavior of the entire millimeter-scale droplet. In the Thermal Energy Engineering lab (TEEL) at the University of Tokyo, together with the collaborators, we have been investigating the rapid spreading of droplets on solid surfaces as a model system, where the non-equilibrium nature of energy dissipation at the contact line becomes evident. On a partially wetting solid surface, when capillary forces drive droplet spreading, the advancement of the contact line is governed by viscous forces, inertial forces, or contact-line friction. Through experiments, we demonstrated that the dominant physical mechanisms can be switched by tuning droplet properties, surface microstructure [1], or applied electric field [2]. We modeled and reproduced these experiments using a phenomenological parameter that quantifies the contact-line friction coefficient and mapped a phase diagram of dominant physical factors in a dimensionless parameter space. With the knowledge, we realized anisotropic wetting and droplet transport by taking advantage of the fact that the dynamic behavior of droplets can be controlled through solid surfaces when contact line friction is dominant [3,4]. Furthermore, in our recent experiments on droplet oscillation [5] and droplet sliding [6] on solid surfaces functionalized with various self-assembled monolayers (SAMs), we observed that nanoscale surface chemistry and morphology significantly influence contact-line dynamics. This suggests that contact-line friction originates from nanoscale energy dissipation, though the dissipation mechanism remains unclear, and thus, it calls for collaboration with experts with multiscale discipline.

Doctoral candidate Elham Shojaeinia at the Department of Pharmacy, Faculty of Mathematics and Natural Sciences, is defending the thesis "Phenotypic drug repurposing for rare neurodevelopmental syndromes with pharmacoresistant epilepsy" for the degree of Philosophiae Doctor.

C*-seminar by Ali Miller (Southern University of Denmark).

There are several approaches to studying configuration spaces of points on curves. Examples are the Deligne-Mumford and Hassett spaces or, in the case of points on a projective line, a straightforward GIT construction. Deligne and Mostow further investigated the situation where moduli spaces of weighted points on the projective line have ball quotient models. This leads to a finite set of configuration spaces of ordered or partially ordered points on P^1. In all of these cases, the GIT compactification and the Baily-Borel compactification of the ball quotient are isomorphic. These spaces have natural (partial) desingularizations, namely the Kirwan blow-up and the toroidal compactification. It follows from results of Gallardo-Kerr-Schaffler and Kiem-Moon that, in the case of ordered configurations, the Deligne-Mostow map lifts to an  isomorphism of these compactifications. This can fail for only partially ordered configurations. The main result of this talk is to explain a criterion exactly when these two compactifications coincide. This is also related to the Log Minimal Model Program. This is joint work with Yota Maeda.   

Title:  Towards data-driven regional weather forecasting

Speaker: Ivar Ambjørn Seierstad, MET Norway

By Dr. Eirik Gramstad, researcher, High energy physics, UiO.

By the end of 2025, all research proposals submitted to the Norwegian Research Council require a research ethics self-evaluation. Join us in this Open Science Lunch session to learn more about the why and how of this requirement.

How can machines and humans learn together to improve rehabilitation outcomes? In this seminar, Associate Professor Ulysse Côté-Allard will present cutting-edge research on the use of wearable biosensors and machine learning to create adaptive, intuitive control systems for rehabilitation technologies. Learn how co-learning and self-learning approaches enable these systems to respond dynamically to muscle activity, paving the way for more personalized and effective human-computer interaction in assistive technology.