Events

Doctoral candidate John Mark Aiken at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis "Understanding University Student Pathways Towards Graduation with Machine Learning and Institutional Data" for the degree of Philosophiae Doctor.

Doctoral candidate Kristin Jensen at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis "Iterative reconstruction in CT imaging; Image quality and radiation doses" for the degree of Philosophiae Doctor.

Doctoral candidate Anna Kristine Fæhn Follestad at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis "Forecasting Space Weather Effects on GNSS Systems" for the degree of Philosophiae Doctor.

Doctoral candidate Christian Zimmermann at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Revealing the Origin of electrically-active Defects in β-Ga₂O₃ and r-TiO₂ "

for the degree of Philosophiae Doctor.

Doctoral candidate Umair Najeeb Mughal at the Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Study of a novel atmospheric icing monitor"

for the degree of Philosophiae Doctor.

Feel like you need some professional input and company these days, without it being too formal or requiring a lot of preparations? A meeting place where you can update each other on what you are working with, ask questions, and discuss while having a cup of coffee and something to eat?

Doctoral candidate Domas Birenis at the Department Of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

“Fundamental investigations of hydrogen embrittlement by using electron microscopy”

for the degree of Philosophiae Doctor.

Join us and talk about how we change how we teach and learn at UiO these days. There will be a presentation followed by discussion and Q&A.

Link to event in the description

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Doctoral candidate Torunn Kjeldstad at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Characterization and functionalization of self-assembled nanostructures"

for the degree of Philosophiae Doctor.

Torunn Kjeldstad at the Department of Physics will give a trial lecture on the given topic:

"Plasmonic nanoparticles"

Doctoral candidate Olja Dordic at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Charged dihadron azimuthal correlations in pp and Pb-Pb collisions, measured with the ALICE detector"

for the degree of Philosophiae Doctor.

Olja Dordic at the Department of Physics will give a trial lecture on the given topic:

"The mass-radius relation of neutron stars - old and new measurements and the connection to the EOS of dense matter"

Recording of the trial lecture will be published here two days before the disputation.

Doctoral candidate Vegard Skiftestad Olsen at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Functional Properties and Band Gap Engineering of ZnO-GaN Alloys"

for the degree of Philosophiae Doctor.

Vegard Skiftestad Olsen at the Department of Physics will give a trial lecture on the given topic:

"White LEDs for illumination"

Marco Hufnagel, DESY Hamburg

_{Weekly Theory Seminar.}

By Professor In-Hwan Lee

Department of Materials Science and Engineering, Korea University, Seoul, Korea

Doctoral candidate Ingrid Digernes at the Department of Physics, Faculty of Mathematics and Natural Sciences, is defending the thesis

"Mapping the vessel architecture of brain cancer by advanced perfusion MRI"

for the degree of Philosophiae Doctor.

Ingrid Digernes at the Department of Physics will give a trial lecture on the given topic:

"New insights in penumbra visualization in acute ischemic stroke"

Camilo Garcia Cely, DESY Hamburg

_{Weekly Theory Seminar.}

Computer science was originally invented as a tool to support learning in other disciplines, including engineering and economics. Today, most of computer science education is aimed at preparing future software developers. How do we broaden the appeal of and access to computer science education, to something closer to what the inventors of the field had in mind?

Abstract:

In 1823 Niels Henrik Abel published a paper with title "Oplösning af et par opgaver ved hjelp af bestemte integraler," (Solution of a couple of problems by means of definite integrals), Magazin for Naturviden-skaberne, Aargang I, Bind 2, Christiania, which did not appear in French translation until 1881. Here he presented a complete framework for fractional-order calculus with appropriate notation for non-integer-order integration and differentiation. This seems to have been unknown until discussed in Podlubny, Magin, Trymorush, "Niels Henrik Abel and the birth of fractional calculus," Fractional Calculus and Applied Analysis, pp. 1068-1075, 2017.

I will give an introduction to non-integer order calculus and Abel's derivation of it. This will be done by going through his 1823 paper showing how he assumes a generalization of both Cauchy's formula for repeated integration and the fundamental theorem of calculus. In addition I will show how fractional calculus can be used to derive fractional-order partial differential wave equations. They have solutions with power-law attenuation which matches measurements in the complex media of medical ultrasound and elastography as well as in sediment acoustics and seismics.