Tidlegare arrangement - Side 66

"Synthesis and characterization of molecules for gold (III) catalysis"

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.

Join us for the fifth dScience Brain Talk webinar with guest speaker Valter Uotila.

We have the pleasure to invite you to an extended webinar on Electron Nanoscopy and structural characterization of novel materials to be held on Wednesday, 5 April.

Maciej Lisicki is an Associate Professor at the Institute of Theoretical Physics, Faculty of Physics University of Warsaw

Hylleraas seminar, hosted in Tromsø

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.

Velkommen til «På trappene med UiO» - en foredragsrekke hvor ny forskning blir presentert i Lillestrøm biblioteks amfitrapp.

This week we discuss a paper by Roopnarine et al. 2022, comparing historical and modern community responses to investigate whether sea cow browsing may have enhanced kelp forest resilience

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

Welcome to our dScience lunch seminar in the Science Library! This event is open to everyone.

Welcome to a full day seminar on solar cell materials arranged by the MATS project and the SOLARIS initiative. The seminar will give an insight into what is going on in the field in Europe, also including high throughput exploration of new materials.

Deadline for signing up is Friday, 17 March.

SPARK Norway Educational Forum are monthly open meetings organized by UiO:Life Science and SPARK Norway partners.

João Inácio: 

The field of low-dimensionality magnetism has developed into an active area of solid-state physics, attracting both theoretical and experimental researchers. Due to the vast array of theoretical tools, there is a large effort to develop a full theoretical understanding of one-dimensional (1D) systems. A large part of this interest is due to nonequilibrium dynamics, where steady-state transport is a generic example.

Many physically relevant 1D models are Bethe-ansatz integrable, such as the spin-1/2 XXZ-model and the Fermi-Hubbard model, but computing transport coefficients still poses a great challenge. Moreover, little is currently known about transport properties of non-integrable models, such as the spin-S XXZ-model or ladder spin systems.

Lecturer: Christa Cuchiero (University of Vienna)

Doctoral candidate Raluca Madalina Florea at the Department of Informatics, Faculty of Mathematics and Natural Sciences, is defending the thesis The Software Tester: An Exploration of the Skills and Practice of the Role for the degree of Philosophiae Doctor.

Prøveforelesningen er den første av fire for stillingen som førsteamanuensis ved UiOs Institutt for teknologisystemer. 

QOMBINE seminar talk by Vebjørn Hallberg Bakkestuen (UiO)