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CATEGORIES:DAMTP BioLunch
SUMMARY:Tales of tails. Swimming statistics of unicellular
  eukaryotes and dynamic buckling of elastic filame
 nts - Maciej Lisicki (University of Cambridge)
DTSTART;TZID=Europe/London:20181122T130000
DTEND;TZID=Europe/London:20181122T140000
UID:TALK115045AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/115045
DESCRIPTION:Microscale propulsion requires adaptation of swimm
 ing strategies to the limitations of Stokes flow. 
 Within the host of unicellular microorganisms\, my
 riads of different forms and functions are exploit
 ed to achieve swimming. This richness of behaviour
  has inspired three research stories. \nIn the fir
 st tale\, we have collected data from the availabl
 e literature on swimming eukaryotes and explore th
 e statistical variability of their swimming speed.
  A careful examination of the statistical properti
 es of the speed distribution for both flagellates 
 and ciliates shows that they are not only both cap
 tured by lognormal distributions but that\, upon r
 escaling the data by the average swimming speed fo
 r each data set\, the speed distributions in both 
 types of organisms are almost identical. \nIn the 
 second tale\, our data for ciliates are useful to 
 deduce whether their cilia beat at a constant forc
 e\, or rather operate at a constant stress. \nIn t
 he last story of tails\, we look at a biomimetic s
 ystem of thin elastic filaments extruded into the 
 fluid and observe their dynamic buckling and foldi
 ng\, which gives an insight into their elastic pro
 perties. 
LOCATION:MR11\, Centre for Mathematical Sciences\, Wilberfo
 rce Road\, Cambridge
CONTACT:Anne Herrmann
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