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SUMMARY:Active matter in inhomogeneous environments - Gwynn Elfring\, Univ
 ersity of British Columbia
DTSTART:20230505T150000Z
DTEND:20230505T160000Z
UID:TALK200239@talks.cam.ac.uk
CONTACT:Prof. Jerome Neufeld
DESCRIPTION:Active matter is a term used to describe matter that is compos
 ed of a large number of self-propelled active ‘particles’ that individ
 ually convert stored or ambient energy into systematic motion. Examples in
 clude a flock of birds\, a school of fish\, or at smaller scales a suspens
 ion of bacteria or even the collective motion within a human cell. When vi
 ewed collectively\, active matter is an out-of-equilibrium material. This 
 talk focuses on active matter systems where the active particles are very 
 small\, for example bacteria or chemically active colloidal particles. The
  motion of small active particles in homogeneous Newtonian fluids has rece
 ived considerable attention\, with interest ranging from phoretic propulsi
 on to biological locomotion\, whereas studies on active bodies immersed in
  inhomogeneous fluids are comparatively scarce. In this talk I will show h
 ow the dynamics of active particles can be dramatically altered by the int
 roduction of fluid inhomogeneity and discuss the effects of spatial variat
 ions of fluid density\, viscosity\, and other fluid complexity.\n\nThis is
  an in person seminar\, which will also be broadcast as the JFM webinar (s
 ee link below).\n\nhttps://cassyni.com/events/WxmBh617wYpw21YZHPB9WV?cb=fu
 ncti
LOCATION:MR2 (also broadcast as JFM webinar)
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