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Meso-scale turbulence in living fluids
Turbulence is ubiquitous, from oceanic currents to small-scale biological and quantum systems. Self-sustained turbulent motion in microbial suspensions presents an intriguing example of collectiveExpand
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Fluid dynamics of bacterial turbulence.
Self-sustained turbulent structures have been observed in a wide range of living fluids, yet no quantitative theory exists to explain their properties. We report experiments on active turbulence inExpand
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M 87 at metre wavelengths: the LOFAR picture
Context. M87 is a giant elliptical galaxy located in the centre of the Virgo cluster, which harbours a supermassive black hole of mass 6.4×109 M, whose activity is responsible for the extended (80Expand
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Minimal continuum theories of structure formation in dense active fluids
Self-sustained dynamical phases of living matter can exhibit remark- able similarities over a wide range of scales, from mesoscopic vortex structures in microbial suspensions and motility assays ofExpand
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Hydrodynamic length-scale selection in microswimmer suspensions.
A universal characteristic of mesoscale turbulence in active suspensions is the emergence of a typical vortex length scale, distinctly different from the scale invariance of turbulent high-ReynoldsExpand
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Self-Propelled Rods: Insights and Perspectives for Active Matter
A wide range of experimental systems including gliding, swarming and swimming bacteria, in-vitro motility assays as well as shaken granular media are commonly described as self-propelled rods. LargeExpand
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Derivation of a hydrodynamic theory for mesoscale dynamics in microswimmer suspensions.
In this paper, we systematically derive a fourth-order continuum theory capable of reproducing mesoscale turbulence in a three-dimensional suspension of microswimmers. We start from overdampedExpand
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A phase diagram for bacterial swarming
Bacterial swarming is a rapid mass-migration, in which thousands of cells spread collectively to colonize surfaces. Physically, swarming is a natural example for active particles that use energy toExpand
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Dynamic electric polarization of nematic liquid crystals subjected to a shear flow.
The effect of coupling between the dipole moment and the orientation is explored based on a relaxation equation for the second rank alignment tensor characterizing the molecular order in liquidExpand
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