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pro vyhledávání: '"Turner, P. S."'
The need for organisms to regulate their volume and osmolarity when surrounded by freshwater is a basic physical challenge for many bacteria, protists and algae. Taking inspiration from the contractile vacuole complex found in many protists, we discu
Externí odkaz:
http://arxiv.org/abs/2409.14835
Faced with a dangerous epidemic humans will spontaneously social distance to reduce their risk of infection at a socio-economic cost. Compartmentalised epidemic models have been extended to include this endogenous decision making: Individuals choose
Externí odkaz:
http://arxiv.org/abs/2407.04366
Autor:
Turner, Michael S.
The age of the Universe at a given redshift is a fundamental relationship in cosmology. For many years, the uncertainties in it were dauntingly large, close to a factor of 2. In this age of precision cosmology, they are now at the percent level and d
Externí odkaz:
http://arxiv.org/abs/2403.19100
Publikováno v:
PLoS One 18, e0288963 (2023)
During epidemics people may reduce their social and economic activity to lower their risk of infection. Such social distancing strategies will depend on information about the course of the epidemic but also on when they expect the epidemic to end, fo
Externí odkaz:
http://arxiv.org/abs/2305.13618
Publikováno v:
Phys. Rev. Lett. 130, 168201 (16 Apr. 2023)
Inspired by the swarming or flocking of animal systems we study groups of agents moving in unbounded 2D space. Individual trajectories derive from a ``bottom-up'' principle: individuals reorient to maximise their future path entropy over environmenta
Externí odkaz:
http://arxiv.org/abs/2303.17906
Microswimmers can acquire information on the surrounding fluid by sensing mechanical queues. They can then navigate in response to these signals. We analyse this navigation by combining deep reinforcement learning with direct numerical simulations to
Externí odkaz:
http://arxiv.org/abs/2212.11482
Transport of material across liquid interfaces is ubiquitous for living cells and is also a crucial step in drug delivery and in many industrial processes. The fluids that are present on either side of the interfaces will usually have different visco
Externí odkaz:
http://arxiv.org/abs/2212.05268
1H 0323+342 is optically one of the nearest and brightest very radio loud narrow line Seyfert 1 galaxies (vRL NLSy1). It is also one of the first vRLNLSy1s detected at gamma-ray energies by the Fermi-LAT. We report the results of monitoring the optic
Externí odkaz:
http://arxiv.org/abs/2209.13066
Few simulations exist for microswimmers near deformable interfaces. Here, we present numerical simulations of the hydrodynamic flows associated with a single microswimmer embedded in a binary fluid mixture. The two fluids demix, separated by a penetr
Externí odkaz:
http://arxiv.org/abs/2205.10919
Publikováno v:
Adv. Theory Simul. 2023, 2200683
A Quincke roller is a unique active particle that can run and tumble freely on a flat plate due to the torque generated by a uniform DC electric field applied perpendicular to the plate. A system involving many such particles exhibits a variety of co
Externí odkaz:
http://arxiv.org/abs/2205.03909