BEGIN:VCALENDAR
VERSION:2.0
PRODID:"-//Durham University/Seminars"
METHOD:PUBLISH
BEGIN:VEVENT
UID:SEMINAR3320
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130524T120000Z
DTEND:20130524T130000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:CM101
SUMMARY:Maths HEP Lunchtime Seminars: 
DESCRIPTION:Ulrich Sperhake, Cambridge\n
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3344
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130528T130000Z
DTEND:20130528T140000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:CM105
SUMMARY:Biomathematics Seminar: Stochastic models in community ecology 
DESCRIPTION:Stephen Cornell, University of Liverpool \nOne of the most fun
 damental questions in biology is: how do so many species to coexist, given
  that the interactions between them are usually antagonistic? Mathematical
  models play a key role in answering this question, and are of timely impo
 rtance for predicting how ecological systems will react to global change. 
 I shall discuss stochastic models of community assembly based on demograph
 ic processes (births, deaths, dispersal), which can be tested against a va
 riety of ecological patterns including species abundance distributions and
  species-area relationships. Simple 'Neutral' models (that assume ecologic
 al interactions to be independent of species identity) can successfully pr
 edict some of these patterns, but require unrealistic assumptions about th
 e underlying biological processes. I shall discuss how to incorporate more
  realistic mechanisms - such as spatial structure, protracted speciation, 
 and non-neutral interactions - without sacrificing mathematical tractabili
 ty. 
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3331
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130531T120000Z
DTEND:20130531T130000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:CM101
SUMMARY:Maths HEP Lunchtime Seminars: 
DESCRIPTION:Andy O'Bannon, Cambridge\n
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3328
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130603T150000Z
DTEND:20130603T160000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:
SUMMARY:Pure Maths Colloquium: 
DESCRIPTION:Alan Haynes, University of Bristol\n
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3349
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130604T130000Z
DTEND:20130604T140000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:CM105
SUMMARY:Biomathematics Seminar: Foam Structure and Rheology: The shape and
  feel of random soap froth
DESCRIPTION:Andrew M. Kraynik, Durham University, COFUND Senior Research F
 ellow\nSoap froth – the quintessential foam – is composed of polyhedra
 l gas bubbles separated by thin liquid films. Why do foams have a shear mo
 dulus and yield stress, which we usually associate with solids? How are th
 e bubbles shaped and how are they packed? These and other questions have b
 een explored through simulations with the Surface Evolver, a computer prog
 ram developed by Brakke. We will describe foam structures ranging in compl
 exity from perfectly ordered foams based on the Kelvin cell to random poly
 disperse foams with 12^3 cells in which the individual cells have a wide d
 istribution of shapes and sizes – the former is highly idealized and the
  latter are very realistic. The calculations are in excellent agreement wi
 th seminal experiments by Matzke (1946) on the foam structure, and shear m
 odulus measurements by Princen and Kiss (1986). The connection between ela
 stic-plastic rheology and foam structure involves intermittent cascades of
  topological transitions; this cell-neighbor switching is a fundamental me
 chanism of foam flow. Diffusive coarsening, a mechanism for foam aging, ha
 s also been simulated.
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3335
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130605T120000Z
DTEND:20130605T130000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:
SUMMARY:Topological Solitons Seminar: TBA
DESCRIPTION:Antti Niemi, Uppsala/Tours\n
END:VEVENT
BEGIN:VEVENT
UID:SEMINAR3315
SEQUENCE:0
DTSTAMP:20130523T224200Z
DTSTART:20130614T120000Z
DTEND:20130614T130000Z
STATUS:CONFIRMED
TRANSP:OPAQUE
LOCATION:
SUMMARY:Maths HEP Lunchtime Seminars: 
DESCRIPTION:Bartek Czech, Amsterdam\n
END:VEVENT
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