Results 41 to 50 of about 540,685 (254)
Active matter, then and now [PDF]
History and Philosophy of the Life Sciences, 2016 Historically, living was divided from dead, inert matter by its autonomous activity. Today, a number of materials not themselves alive are characterized as having inherent activity, and this activity has become the subject of a hot new field of physics, "Active Matter", or "Soft matter become alive." For active matter scientists, the relation of ...
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Irreversibility, heat and information flows induced by non-reciprocal interactions
New Journal of Physics, 2020 We study the thermodynamic properties induced by non-reciprocal interactions between stochastic degrees of freedom in time- and space-continuous systems. We show that, under fairly general conditions, non-reciprocal coupling alone implies a steady energy
Sarah A M Loos, Sabine H L Klapp
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Thermodynamic cycles with active matter [PDF]
Physical Review E, 2020 7 pages, 3 ...
Ekeh, Timothy +2 more
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Frontiers in Physics, 2020 Upconverting nanoparticles typically absorb low frequency radiation and emit at higher frequencies relying upon multiphoton processes. One such type of particle is NaYF4:Yb,Er, which absorbs at 975 nm while emitting in visible radiation.
Sumeet Kumar +6 more
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Computational models for active matter [PDF]
Nature Reviews Physics, 2020 A variety of computational models have been developed to describe active matter at different length and time scales. The diversity of the methods and the challenges in modeling active matter---ranging from molecular motors and cytoskeletal filaments over artificial and biological swimmers on microscopic to groups of animals on macroscopic scales ...
M. Reza Shaebani +4 more
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Swirlonic state of active matter. [PDF]
Sci Rep, 2020 AbstractWe report a novel state of active matter—a swirlonic state. It is comprised of swirlons, formed by groups of active particles orbiting their common center of mass. These quasi-particles demonstrate a surprising behavior: In response to an external load they move with a constant velocity proportional to the applied force, just as objects in ...
Brilliantov NV +3 more
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Dynamics of topological defects in the noisy Kuramoto model in two dimensions
Frontiers in Physics, 2022 We consider the two-dimensional (2D) noisy Kuramoto model of synchronization with short-range coupling and a Gaussian distribution of intrinsic frequencies, and investigate its ordering dynamics following a quench. We consider both underdamped (inertial)
Ylann Rouzaire +4 more
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Effective temperature of active matter [PDF]
Physical Review E, 2008 We follow the dynamics of an ensemble of interacting self-propelled motorized particles in contact with an equilibrated thermal bath. We find that the fluctuation-dissipation relation allows for the definition of an effective temperature that is compatible with the results obtained using a tracer particle as a thermometer.
Loi, Davide +2 more
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Braiding Dynamics in Active Nematics
Frontiers in Physics, 2022 In active matter systems, energy consumed at the small scale by individual agents gives rise to emergent flows at large scales. For 2D active nematic microtubule (ANMT) systems, these flows are largely characterized by the dynamics of mobile defects in ...
Spencer Ambrose Smith, Ruozhen Gong
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld +5 more
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