Results 41 to 50 of about 3,052,280 (220)

Alignments of a Microparticle Pair in a Glow Discharge

open access: yesMolecules, 2021
Stability of a vertically aligned microparticle pair in a stratified glow DC discharge is experimentally investigated. Using laser perturbations, it is shown that, for the same discharge parameters, a pair of microparticles can be suspended in two stable
Evgeny A. Lisin   +4 more
doaj   +1 more source

Matter Effects in Active-Sterile Solar Neutrino Oscillations [PDF]

open access: yes, 2009
The matter effects for solar neutrino oscillations are studied in a general scheme with an arbitrary number of sterile neutrinos, without any constraint on the mixing, assuming only a realistic hierarchy of neutrino squared-mass differences in which the ...
Giunti, C., Li, Y. F.
core   +1 more source

Optimization of Phase-Change Material–Elastomer Composite and Integration in Kirigami-Inspired Voxel-Based Actuators

open access: yesFrontiers in Robotics and AI, 2021
Phase-change material–elastomer composite (PCMEC) actuators are composed of a soft elastomer matrix embedding a phase-change fluid, typically ethanol, in microbubbles. When increasing the temperature, the phase change in each bubble induces a macroscopic
Gilles Decroly   +11 more
doaj   +1 more source

The 2020 motile active matter roadmap [PDF]

open access: yesJournal of Physics: Condensed Matter, 2020
Abstract Activity and autonomous motion are fundamental in living and engineering systems. This has stimulated the new field of ‘active matter’ in recent years, which focuses on the physical aspects of propulsion mechanisms, and on motility-induced emergent collective behavior of a larger number of identical agents.
Sohan Kale   +37 more
openaire   +13 more sources

Differential-activity driven instabilities in biphasic active matter [PDF]

open access: yes, 2017
Active stresses can cause instabilities in contractile gels and living tissues. Here we describe a generic hydrodynamic theory that treats these systems as a mixture of two phases of varying activity and different mechanical properties.
Mahadevan, L.   +2 more
core   +3 more sources

Anomalous cell sorting behavior in mixed monolayers discloses hidden system complexities

open access: yesNew Journal of Physics, 2021
In tissue development, wound healing and aberrant cancer progression cell–cell interactions drive mixing and segregation of cellular composites. However, the exact nature of these interactions is unsettled.
Paul Heine   +4 more
doaj   +1 more source

Do Active Nematic Self-Mixing Dynamics Help Growing Bacterial Colonies to Maintain Local Genetic Diversity?

open access: yesFrontiers in Physics, 2022
Recent studies have shown that packings of cells, both eukaryotic cellular tissues and growing or swarming bacterial colonies, can often be understood as active nematic fluids.
Fabian Jan Schwarzendahl    +3 more
doaj   +1 more source

Swirlonic state of active matter. [PDF]

open access: yesSci 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
europepmc   +5 more sources

The masses of active neutrinos in the nuMSM from X-ray astronomy [PDF]

open access: yes, 2006
In an extention of the Standard Model by three relatively light right-handed neutrinos (the nuMSM model) the role of the dark matter particle is played by the lightest sterile neutrino.
A. Boyarsky   +18 more
core   +3 more sources

An Integrated Cytoskeletal Model of Neurite Outgrowth

open access: yesFrontiers in Cellular Neuroscience, 2018
Neurite outgrowth underlies the wiring of the nervous system during development and regeneration. Despite a significant body of research, the underlying cytoskeletal mechanics of growth and guidance are not fully understood, and the relative ...
Kyle E. Miller   +4 more
doaj   +1 more source

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