Previous events - Page 24
Doctoral candidate Xinwei Sun at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis "Quantification of surface protonic conduction in porous oxides" for the degree of Philosophiae Doctor.
Operator algebra seminar by Alexander Müller-Hermes (University of Oslo)
Doctoral candidate Tamjidmaa Khatanbaatar at the Department of chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis "Partners in crime – Structure-function studies on chorismate mutases and their associated enzymes" for the degree of Philosophiae Doctor.
Welcome to our GEOHYD Lunch Seminar Friday 14th of April @ 12:15 in Aud. 2, Geology building, or via video link using Zoom. The seminar is held by Jukes Liu, Geo, Boise State University.
Is it difficult to set aside time to write? The Academic Writing Centre organsises structured writing sessions for doctoral students.
Title: Radiative properties of microplastics at a global scale
Speaker: Laura Revell, University of Canterbury
Doctoral candidate Victoria Ariel Bjørnestad at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, is defending the thesis "Surfactant Micelles and Structural Pathways for Solubilization of Lipid Membranes" for the degree of Philosophiae Doctor.
Doctoral candidate Vemund Stenbekk Thorkildsen at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis Resolution analysis and enhancement in geophysical imaging and inversion for the degree of Philosophiae Doctor.
Variable selection methods based on L0 penalties have excellent theoretical properties to select sparse models in a high-dimensional setting. There exist modifications of BIC which either control the family wise error rate (mBIC) or the false discovery rate (mBIC2) in terms of which regressors are selected to enter a model. However, the minimization of L0 penalties comprises a mixed integer problem which is known to be NP hard and therefore becomes computationally challenging with increasing numbers of regressor variables. This is one reason why alternatives like the LASSO have become so popular, which involve convex optimization problems which are easier to solve. The last few years have seen some real progress in developing new algorithms to minimize L0 penalties. We will compare the performance of these algorithms in terms of minimizing L0 based selection criteria.
Simulation studies covering a wide range of scenarios which are inspired by genetic association studies are used to compare the values of selection criteria obtained with different algorithms. Additionally some statistical characteristics of the selected models and the runtime of algorithms are compared.
Welcome to our GEOHYD Lunch Seminar Friday 31st of March @ 12:15 in Aud. 2, Geology building, or via video link using Zoom. The seminar is held by Andreas Max Kääb, GEO.
Doctoral candidate Niklas Nilsson at the Department of Pharmacy, Faculty of Mathematics and Natural Sciences, is defending the thesis "Intravenous drug co-administration in neonatal and paediatric intensive care patients - examining clinically relevant multi-drug compatibility" for the degree of Philosophiae Doctor.
Nicolas Poirier, Ph.D. fellow at Rosseland Centre for Solar Physics, University of Oslo.
Is it difficult to set aside time to write? The Academic Writing Centre organsises structured writing sessions for doctoral students.
Ivar Thokle Hovden will defend his thesis “Structural and functional tracking in longitudinal magnetic resonance imaging of glioblastoma” for the degree of Philosophiae Doctor at the University of Oslo, Faculty of Mathematics and Natural Sciences.
Join us for a discussion on how open source tools can enable automated, reproducible and scalable public health reporting.
Felleskollokvium by Dr. James Catmore, Dept. of Physics, UiO
We invite you to the March RoCS Solar/Stellar Lunch. You are invited to discuss your work with colleagues.
SPARK Norway Educational Forum are monthly open meetings organized by UiO:Life Science and SPARK Norway partners.
Lecturer: Christa Cuchiero (University of Vienna)
QOMBINE seminar talk by Vebjørn Hallberg Bakkestuen (UiO)
Title: The Role of Anthropogenic Aerosols in Recent North Atlantic Climate Change
Speaker: Laura Wilcox, University of Reading
Doctoral candidate Bjørn Skauli at the Department of Mathematics will be defending the thesis Rationality Properties of Some Hypersurfaces and Complete Intersections for the degree of Philosophiae Doctor.
Welcome to our GEOHYD Lunch Seminar Friday 24th of March @ 12:15 in Aud. 2, Geology building, or via video link using Zoom. The seminar is held by Bikas Bhattarai (Met.no).
Constructing fast solution schemes often involves deciding which errors are acceptable and which approximations can be made for the sake of computational efficiency. Herein, we consider a mixed formulation of Darcy flow in porous media and take the perspective that the physical law of mass conservation is significantly more important than the constitutive relationship, i.e. Darcy's law. From this point of view, we propose an inexact solution technique that nevertheless guarantees local mass conservation. The method is based on first solving the mass balance equation and then computing a solenoidal correction using the curl of a potential field. We extend the method to flows in fractured porous media and present numerical experiments that indicate the efficiency of the scheme.
Doctoral candidate Julia Fredrika Alopaeus at the Department of Pharmacy, Faculty of Mathematics and Natural Sciences, is defending the thesis "Development and evaluation of oromucosal graft co-polymer-based film formulations as patient-centric dosage forms" for the degree of Philosophiae Doctor.