Institutskolloquium des IPP 2020

Wissenschaftliches Kolloquium des IPP in Garching und Greifswald mit Videoübertragung


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Genetics and neurobiology of willpower: why some people can resist temptations better.Genetics and neurobiology of willpower: why some people can resist temptations better

Institutskolloquium
  • Datum: 07.02.2020
  • Uhrzeit: 10:30 - 12:00
  • Vortragende: Irina Yakutenko
  • Irina Yakutenko is a scientific journalist and writer based in Berlin. As a science writer and editor, she worked at many leading Russian media including Lenta.Ru, TASS and ‘Вокруг света’ ("Around the Globe ") magazine. She graduated from Molecular Biology Department of Moscow State University and her primary interest in science lies in the field of biology. She is especially interested in biological mechanisms underlying different aspects of human behavior. In 2017 she published a book “Willpower and self-control: how do genes and brain prevent us from resisting temptations”. In the book, which was short-listed for prestigious Russian book prize ‘Просветитель’ (Enlightener), she studies the phenomenon of willpower in the context of neurobiology and genetics, and reviews existing scientific theories explaining why some people combat temptations better than others. In addition to writing, Irina often gives public speeches about science: she is a lecturer and author of popular science videoblogs ‘Бодрые новости’ (Brisk news) and ‘И что с того?’ (So what?’).
  • Ort: IPP Greifswald
  • Raum: HGW S1 (Übertragung Hörsaal D2)
  • Gastgeber: Dmitry Moseev
  • Kontakt: dmitry.moseev@ipp.mpg.de
Statistics revealed that people dramatically differ in their capability to resist all sorts of temptations from nicotine and alcohol to food cravings and shopping. Latest research shows that brains of the people who can better resist things which seem pleasant now but are dangerous in the long run, distinctly differ from those of others. These differences include not only physiology but also biochemistry: brain of willpower superheroes literally works in another way when exhibited to cravings. In her lecture Irina Yakutenko will explain what differences are most important in the context of self-control and tell which genes are responsible for the behavior patterns that manage our reactions to tempting things. In the last part of the lecture she will outline some strategies that can help people who bear ‘unfavorable’ gene variants to overcome devastating reactions of their brain that threaten important life plans. [mehr]
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The shape of flowing water

Institutskolloquium
  • Datum: 06.03.2020
  • Uhrzeit: 10:30 - 12:00
  • Vortragende(r): Prof. Tomas Bohr
  • Tomas Bohr is Professor at DTU-Physics. His research area is fluid dynamics, biophysics, chaos, turbulence and statistical mechanics. He combines theoretical work with simple model experiments on hydraulic jumps and other free-surface and sap-flows in trees (see http://www.fysik.dtu.dk/complex). Member of the Royal Danish Academy of Sciences and Letters and he has published around 110 papers in international journals as well as popular science papers and the book ”Bevægelsens uberegnelige skønhed. Om kaos”, Gyldendal 1992.
  • Ort: IPP Greifswald
  • Raum: HGW S1 (Übertragung Hörsaal D2)
  • Gastgeber: Dmitry Moseev
  • Kontakt: dmitry.moseev@ipp.mpg.de
The shape of flowing water When we observe fluid flows in nature, it is often because we notice the deformation of the fluid surface e.g., when light reflects on a water drop or an ocean wave. Such deformations can have great beauty and complexity, since the shape of the free surface is intimately and very nonlinearly coupled to the internal flow. In the talk, I will show examples of “simple” flows that, via a combination of inertia, gravity, friction, centrifugal forces and surface tension, generate surfaces with strong deformations, and that lead to interesting symmetry breaking transitions, where sharp corners and polygonal structures appear - even in strongly turbulent flows. The two basic examples are hydraulic jumps and rotating polygons illustrating these phenomena for laminar and turbulent flows, respectively, and it will be shown that, despite their large differences in Reynolds numbers and instability mechanism, they both rely on a transition between supercritical and subcritical flow. The phenomenon of “flow separation” will be shown to play a decisive role in the determination of flow structure and surface shape, and its importance will be further illustrated by examples from the formation and metamorphoses of sand-ripples. If time permits, I shall briefly discuss the recent attempt by Y. Couder and his collaborators to explain the mysteries of quantum mechanics by bouncing droplets moving and interacting through surface waves. [mehr]
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