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Video of controlled swarm

The team from Uppsala University and University College Dublin measured hysteresis of the velocity of an active swarm in computer simulations and experiments on unicellular algae Euglena gracilis. The phototactic Euglena cells were driven by variable illumination and tracked using microscopy.
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0:18
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  • New study shows the dynamics of active swarms in alternating fields

    Researchers from Uppsala University have studied the dynamics of active swarms using computer simulations and experiments on unicellular algae. The team not only found full analogy of the active motion in a field to magnetic hysteresis but also managed to quantify the controllability of the swarm and identify the signatures of collective behavior of the active agents.

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