Sounds and hydrodynamics of polar active fluids
Sign Up to like & getrecommendations! Published in 2018 at "Nature Materials"
DOI: 10.1038/s41563-018-0123-4
Abstract: Spontaneously flowing liquids have been successfully engineered from a variety of biological and synthetic self-propelled units1–11. Together with their orientational order, wave propagation in such active fluids has remained a subject of intense theoretical studies12–17.… read more here.
Keywords: hydrodynamics polar; propagation; sounds hydrodynamics; active fluids ... See more keywords
Comparison and agreement between device-estimated and self-reported sleep periods in adults
Sign Up to like & getrecommendations! Published in 2023 at "Annals of Medicine"
DOI: 10.1080/07853890.2023.2191001
Abstract: Abstract Objectives Discriminating sleep period from accelerometer data remains a challenge despite many studies have adapted 24-h measurement protocols. We aimed to compare and examine the agreement among device-estimated and self-reported bedtime, wake-up time, and… read more here.
Keywords: agreement; ura ring; sleep periods; polar active ... See more keywords
From scalar to polar active matter: Connecting simulations with mean-field theory.
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.101.022602
Abstract: We study numerically the phase behavior of self-propelled elliptical particles interacting through the "hard" repulsive Gay-Berne potential at infinite Péclet number. Changing a single parameter, the aspect ratio, allows us to continuously go from discoid… read more here.
Keywords: polar active; active matter; scalar polar; mean field ... See more keywords
Spontaneous chiralization of polar active particles.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review. E"
DOI: 10.1103/physreve.104.044607
Abstract: Polar active particles constitute a wide class of active matter that is able to propel along a preferential direction, given by their polar axis. Here, we demonstrate a generic active mechanism that leads to their… read more here.
Keywords: polar active; spontaneous chiralization; chiralization polar; active particles ... See more keywords
Measuring Physical Activity in Free-Living Conditions—Comparison of Three Accelerometry-Based Methods
Sign Up to like & getrecommendations! Published in 2017 at "Frontiers in Physiology"
DOI: 10.3389/fphys.2016.00681
Abstract: We examined the agreement in time spent on different physical activity (PA) levels using (1) mean amplitude deviation (MAD) of raw acceleration from the hip, (2) wrist-worn Polar Active, and (3) hip-worn Actigraph counts using… read more here.
Keywords: living conditions; actigraph; polar active; free living ... See more keywords