BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20250330T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260312T163039Z
UID:1747647000@ist.ac.at
DTSTART:20250519T113000
DTEND:20250519T123000
DESCRIPTION:Speaker: Daniel Bonn\nhosted by Scott Waitukaitis\nAbstract: We
  propose a new 'active particle' system in which the particles are in fact
  polymer-like: living worms (Tubifex Tubifex\, or 'sludge worms'). Their l
 evel of activity can be controlled by changing the temperature but also by
  adding small amounts of alcohol to make the worms drunk\, which strongly 
 reduces their motion. We then ask the question what the difference is betw
 een our living polymers and real polymers\, for which the motion is due to
  thermal fluctuations.Performing classical rheology experiments on our liv
 ing entangled polymer system\, we find that the rheology is qualitatively 
 similar to that of usual polymers\, but\, quantitatively their shear thinn
 ing is reduced by activity. I will also discuss phase separation by entang
 lement\, and our attempts to perform hydrodynamic chromatography of these 
 wormy polymers. For the latter\, we gently push the worms through a maze\,
  and find that drunk worms have more difficulty navigating through it: the
 y take much more time to get out of the maze. 
LOCATION:Raiffeisen Lecture Hall\, ISTA
ORGANIZER:Diana.Gruber@ista.ac.at
SUMMARY:Daniel Bonn: Drunk T. Tubifex Worms: How are active polymers differ
 ent from real polymers?
URL:https://talks-calendar.ista.ac.at/events/5539
END:VEVENT
END:VCALENDAR