Tidligere arrangementer - Side 49

NCMM Associate Investigator Ole Andreassen, Professor at the Division of Mental Health and Addiction, Oslo University Hospital and the Institute of Clinical Medicine, University of Oslo, will present his research as part of the NCMM Tuesday Seminar Series.

C*-algebra seminar talk by Judy Packer (University of Colorado Boulder)

C*-algebra seminar talk by Roberto Conti (Sapienza University of Rome)

C*-algebra seminar / Gemini Center seminar talk by Paula Belzig (University of Copenhagen)

Abstract: I present the electrophoretic transport phenomenon of spherical soft particles. Electrophoresis is one of the important electrokinetic techniques, which is often used to characterize, and separation of colloids.  It is commonly used as a separation technique and often used in the separation of DNA, protein molecules, serum to identify paraproteins, etc. Electrophoretic transport phenomenon is also used to understand the electric properties of several bioparticles including virus, bacteria, humic cells and macromolecules and may be used to understand the transport of cargo vessel in treatments of various diseases, e.g., cancer, inflammation, multiple myeloma, rental pathological disorders and macroglobulinemia, etc. Thus, the proper understanding of the electrophoretic transport of soft particles is important to understand the characteristics features of various bio-colloids and macromolecules, which can be viewed as soft particles. In this talk, I will present some of the existing simplified models for electrophoretic transport of soft particles. In addition, I have further extended it for the real situation, considering the effect of pH-dependent charge densities of the inner core and peripheral soft polymeric layer, effect of hydrodynamic slip length of the hydrophobic core surface, etc. 

Hybrid format via Zoom possible on demand (contact timokoch at uio.no)

Max Gr?nke, Max Planck Institute for Astrophysics, Garching (Germany).

I present a simple, efficient, three dimensional, time dependent model for bone regeneration in the presence of porous scaffolds to bridge critical size bone defects. The essential processes are an interplay between the mechanical and biological environment which we model by a coupled system of PDEs and ODEs. The mechanical environment is represented by a linear elastic equation and the biological environment through reaction-diffusion equations as well as as logistic ODEs, modelling signalling molecules and cells/bone respectively. Material properties are incorporated using homogenized quantities not resolving any scaffold microstructure. This makes the model efficient in computations, thus suitable as a forward equation in optimization algorithms and opening up the possibility of patient specific scaffold design and this model is used as a PDE constraint for the optimization of polymer scaffold porosities. Our numerical findings show that our model for example recovers and quantifies clinically relevant stress shielding effects that appear in vivo due to external fixation of the scaffold at the defect site.

This talk is part of the Mechanics Lunch Seminar series. Bring-your-own-lunch and lots of questions.

Hayley Macpherson, Centre for Theoretical Cosmology in DAMTP, University of Cambridge (UK)

Prof. Fernando Alvarez

Emeritus Arnt Inge Vistnes, Fysisk institutt, UiO.

Welcome to this hybrid event on the prospects for energy cooperation between Nordic and Latin American countries.

Vegard Skirbekk, senior researcher at the Norwegian Institute of Public Health (FHI).

The Chinese political system includes several million full-time professional staff often referred to as 'cadres'. Who are these local administrators, and how important are they for the Chinese Communist Party's developmental policies? How will it influence an individual to become a CCP cadre? In this seminar, we will examine cadres' roles from the perspective of two case studies, one focusing on environmental policies and the other with a focus on gender.

Caroline Palmer, Professor in the Department of Psychology at McGill University, will speak at RITMO's Seminar Series

Dr Hanna Ollila, Research Fellow at the University of Finland, will present her research as part of the NCMM Tuesday Seminar Series.

Abstract: T cell activation is initiated upon T cell receptor (TCR) binding to cognate peptide-MHC complexes on the surface of antigen presenting cells (APCs). This initiates the formation of the immunological synapse ¨C a specialized hub for bidirectional membrane transfer between T cells and APCs which is essential for processes such as downregulation of triggered TCR and T cell-mediated stimulation of B cells. Here, I will present some recent advancements in our understanding of how this is regulated.

This talk is part of the Mechanics Lunch Seminar series. Bring-your-own-lunch and lots of questions. Hybrid format via Zoom possible on demand (contact timokoch at uio.no)

Prof. Philippa Browning, Jodrell Bank Centre for Astrophysics, The University of Manchester.

On April 28, the Centre for Gender Research (STK) will hold a joint academic lunch event together with C-REX ¨C Center for Research on Extremism.

Abstract: What links a baby¡¯s first breath to adhesive debonding, enhanced oil recovery, filtration or multiphase microfluidics? These processes all involve two-phase flows in rigid or elastic confined vessels and are often prone to interfacial instabilities. The canonical viscous fingering instability, which occurs when air displaces a viscous fluid in the narrow gap between two parallel plates, offers a versatile testbed for such phenomena. In this talk, I will use both experiments and numerical simulations of depth-averaged models to explore several aspects of bubble dynamics in Hele-Shaw cells. I will first show how the onset of fingering can be suppressed when replacing the upper plate of the vessel with an elastic sheet. Interfacial flows in narrow gaps can also exhibit considerable disorder, but they are rarely investigated from a dynamical systems¡¯ perspective. I will show how compliance can promote rich multiplicity of front propagation modes in a channel before turning to bubble propagation in a rigid channel with a depth perturbation. There I will explore how the bubble¡¯s organised transient dynamics is orchestrated by weakly-unstable steady propagation modes, and how its long-term behaviour may be practically unpredictable.

This talk is part of the Mechanics Lunch Seminar series. Bring-your-own-lunch and lots of questions. Hybrid format via Zoom possible on demand (contact timokoch at uio.no)