Previous events
Dag Kristian Dysthe (Njord, UiO): "Active materials shape themselves".
Hylleraas seminar, hosted in Tromsø
Welcome to our GEOHYD Lunch Seminar Friday 22nd of March @ 12:15 in Aud. 1, Geology building or via videolink using Zoom. The seminar is held by Andreas Kääb (UiO).
During this cold winter in Oslo, we certainly all have experienced the unsteady nature of friction and the sudden loss of stress bearing capacity that initiates catastrophic sliding. A similar kind of frictional rupture arises at the onset of a wide variety of natural disasters that includes earthquakes, landslides, as well as snow avalanches. In this talk, I will focus on the incipient stage of these catastrophic events that is characterized by the local nucleation of failure and its rapid propagation towards intact regions of the material. I will discuss how the analogy to fracture mechanics can be exploited to describe the dynamics of these rupture fronts and develop quantitative models to characterize the onset of failure in geomaterials.
Luis Teodoro, Centre for Space Sensors and Systems, Faculty of Mathematics and Natural Sciences, University of Oslo.
For det blotte øyet, kan maur virke som en lite truende art for menneskeheten. Men med deres massive populasjon, globale utbredelse og ufravikelige kollektivisme, er det flere filmskapere som har bitt seg merke i deres potensial som antagonist.
Donaldson-Thomas and Pandharipande-Thomas theory are two approaches to counting curves on projective threefolds in terms of their moduli spaces of sheaves. An important special case in understanding the DT/PT correspondence the equivariant geometry of affine three-space with the natural coordinate action of the rank 3 torus. I will show how one can use new wall-crossing techniques to prove the equivariant K-theoretic DT/PT correspondence in this situation, which was previously known only in the Calabi-Yau limit.
This is part of an ongoing project with Felix Thimm and Henry Liu in which we aim to prove wall-crossing for virtual enumerative invariants associated to equivariant CY3 geometries by extending a vertex algebra formalism for wall-crossing developed by Joyce.
Title: Structure and the variability of the Lofoten Basin Eddy observed by Seagliders during the SWOT Cal/Val phase
Speaker: Ilker Fer, UiB
Genetic screens for antibiotic resistance determinants in Staphylococcus aureus using CRISPR interference libraries.
Morten Kjos is Associate Professor at NMBU
We invite you to the March RoCS Solar/Stellar Lunch. You are invited to discuss your work with colleagues.
Staphylinid Beetle Diversity Patterns in Afrotropical Mountains, with Particular Reference to the genus Megarthrus (Coleoptera: Staphylinidae)
Zotero is a smart reference and research tool suitable for collaboration. In this workshop, you will learn how to collect, organize, and share your bibliographies, cite as you write, and mark up and annotate your research material.
Det Norske Videnskaps-Akademi kunngjør årets vinner av Abelprisen! Få med deg spenningen, reaksjonene og sendingen fra DNVA på storskjem i Realfagsbiblioteket!
Andreas Wahl tar oss med under panseret på NRKs Folkeopplysningen. Våren 2024 inviterer MNKOM-emnet ved UiO til en rekke åpne forelesninger og samtaler.
University of Oslo and University of Gothenburg invite to an informal workshop within machine learning with a focus on statistical aspects related to Machine Learning.
Jan Martin Nordbotten is a Professor in Department of Mathematics and part of porous media research group at the University of Bergen.
Hylleraas seminar, hosted in Oslo
Welcome to our GEOHYD Lunch Seminar Friday 15th of March @ 12:15 in Aud. 1, Geology building or via videolink using Zoom. The seminar is held by Pragay Shourya Moudgil (UiO).
Bone stress injuries affect athletic populations who undertake activities in which bones are repeatedly loaded. In order to understand and reduce the risk of bone stress injuries, we need to quantify the loading experienced by the bones during activities such as running. Bone loading is difficult to quantify as the magnitudes of stress are influenced to a large extent by the magnitude of muscular forces acting on the bone. Musculoskeletal modelling, ranging from very simple to very complex approaches, can be used to estimate the internal loading experienced by the bone during running. This has allowed us to explore factors such as speed, slope and step length and their influence on bone loading during running. However, in order to truly understand risk of stress injuries this needs to be taken out of the lab and in-field. This talk will consider what we know and the limitations to current understanding.
Cheng-Zong Ruan, Institute of Theoretical Astrophysics, University of Oslo.
Is it difficult to set aside time to write? The Academic Writing Centre organsises structured writing sessions for PhDs and Postdocs.
Where are you going, structural biology? This mini-symposium will focus on the modern use of NMR, CryoEM/ET and AlphaFold in the elucidation of protein structure and function.
Gromov—Witten invariants are virtual counts of curves with prescribed conditions in a given algebraic variety. One of the main techniques to study Gromov—Witten invariants is degeneration. The degeneration formula expresses absolute Gromov—Witten invariants in terms of relative Gromov—Witten invariants of algebraic varieties with tangency conditions along boundary divisors.
Relative Gromov—Witten invariants with only one relative marking are relative invariants with maximal contacts along the unique relative marking. The local-relative correspondence proved by van Garrel—Graber—Ruddat states that genus zero relative invariants with maximal contacts are equal to local Gromov—Witten invariants of a line bundle. Local invariants are usually easier to compute. However, The degeneration formula usually involves relative invariants beyond maximal contacts (i.e. with several relative markings). I will explain a generalization of the local-relative correspondence beyond maximal contacts, hence determine all the genus zero relative invariants that appear in the degeneration formula.
This is based on joint work with Yu Wang.