Tidlegare arrangement - Side 39

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: 

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.

Nils-Ole Stutzer, PhD candidate at the Institute of Theoretical Astrophysics, University of Oslo.

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.   

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.

C*-algebra seminar by John Quigg (Arizona State University)

Innenfor kritisk teori har man lenge hevdet at terapeutisk kultur kun forsterker og kanaliserer kapitalismens krav til menneskelig produktivitet og ytelse. Suvi Salmenniemi er ikke enig.

Doctoral candidate Lena Myklebust at the Department of Informatics, Faculty of Mathematics and Natural Sciences, is defending the thesis Modeling the Electrophysiology and Mechanics of Ventricular Arrhythmia for the degree of Philosophiae Doctor.

Ass. Professor Nicolas Valiente Parra will give a seminar on: Microbial metabolism: the central force driving greenhouse gas emissions in lakes.

This talk explores how microbial metabolism regulates greenhouse gas emissions in lakes, highlighting its central role in carbon and nitrogen cycling across northern ecosystems. By connecting microbial-scale processes to ecosystem-level, the work directly contributes to CBA’s mission of understanding and predicting climate change feedbacks.

Emmett B. Kendall is a fifth year PhD candidate in the Department of Statistics at North Carolina State University (NC State). He graduated from the University of Florida (UF) with a B.S. in Mathematics and a Minor in Statistics. 

His research interests include hidden Markov models, Bayesian inference, biomedical statistics, functional data analysis, multi-task learning and regression discontinuity designs. 

Ph.d.-kandidat Aditi Bhatnagar ved Institutt for teoretisk astrofysikk, Det matematisk-naturvitenskapelige fakultet, vil forsvare avhandlingen "Spectral and topological study of small-scale energetic events in the solar atmosphere" for graden Philosophiae Doctor.

Doctoral candidate Josue Kuika Watat at the Department of Informatics, Faculty of Mathematics and Natural Sciences, is defending the thesis The Role of Health Management Information Systems for Informed Action: An Effective Use Perspective for the degree of Philosophiae Doctor.

In this ODD seminar, Henning Myhrehagen will present findings from his interview study to open a wider discussion on the integration of programming in science education. 

This week, Maxim Kartamyshev from Norges Bank Investment Management ("Oljefondet") will tell us about the use of Quantum Technology in Finance:

“Micro- and Nanoplastics in Air - Pilot Study on the Detection of Tire Wear Particles by Thermal Desorption Proton Transfer Reaction Mass Spectrometry”

Quentin Noraz, Postdoctoral Research Fellow of Rosseland Centre for Solar Physics (RoCS), University of Oslo

How does finance and oil mix? This is the topic of the next gathering of the Oil & Society research network.

by Joanna Dziadkowiec

NJORD, UiO

Recipient of the Else-Ragnhild Neumann Award 2024