Results 51 to 60 of about 1,092,794 (289)
Biological benefits of collective swimming of sperm in a viscoelastic fluid
Frontiers in Cell and Developmental Biology, 2022 Collective swimming is evident in the sperm of several mammalian species. In bull (Bos taurus) sperm, high viscoelasticity of the surrounding fluid induces the sperm to form dynamic clusters.
Shiva Phuyal +3 more
doaj +1 more source
Collective Dynamics of Interacting Molecular Motors [PDF]
Physical Review Letters, 2006 The collective dynamics of N interacting processive molecular motors are considered theoretically when an external force is applied to the leading motor. We show, using a discrete lattice model, that the force-velocity curves strongly depend on the effective dynamic interactions between motors and differ significantly from those of a simple approach ...
Campàs, O. +4 more
openaire +3 more sources
Flows with collective dynamics on a sphere
Pracì Mìžnarodnogo Geometričnogo Centru, 2021 In this article different properties of flow codes are studied and a diagram is constructed as a whole topological invariant of them. In particular, flows with no more than 6 saddles are described. Two types of simple bifurcations: positive and negative –
Андрій Прус +2 more
doaj +1 more source
Collective Dynamics of Complex Plasma Bilayers [PDF]
Physical Review Letters, 2009 A classical dusty plasma experiment was performed using two different dust grain sizes to form a strongly coupled asymmetric bilayer (two closely spaced interacting monolayers) of two species of charged dust particles. The observation and analysis of the thermally excited particle oscillations revealed the collective mode structure and wave dispersion ...
Hartmann, P. +5 more
openaire +3 more sources
Lyapunov analysis captures the collective dynamics of large chaotic systems
, 2009 We show, using generic globally-coupled systems, that the collective dynamics of large chaotic systems is encoded in their Lyapunov spectra: most modes are typically localized on a few degrees of freedom, but some are delocalized, acting collectively on ...
Francesco Ginelli +3 more
core +1 more source
Emergent user behavior on Twitter modelled by a stochastic differential equation [PDF]
, 2015 Data from the social-media site, Twitter, is used to study the fluctuations in tweet rates of brand names. The tweet rates are the result of a strongly correlated user behavior, which leads to bursty collective dynamics with a characteristic 1/f noise ...
Mathiesen, Joachim, Mollgaard, Anders
core +4 more sources
Anomalous Collective Dynamics of Autochemotactic Populations
Physical Review Letters, 2023 While the role of local interactions in nonequilibrium phase transitions is well studied, a fundamental understanding of the effects of long-range interactions is lacking. We study the critical dynamics of reproducing agents subject to autochemotactic interactions and limited resources.
Jasper van der Kolk +5 more
openaire +3 more sources
Collective Dynamics in Quasi-One-Dimensional Hard Disk System
Frontiers in Physics, 2021 We present the results of molecular dynamic studies of collective dynamics in a system of hard disks confined to a narrow quasi-one-dimensional (quasi-1D) channel. The computer simulations have been performed for the specific channel width of 3/2 of disk
Adrián Huerta +4 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Bulk Observables within a Hybrid Approach for Heavy Ion Collisions with SMASH Afterburner
Proceedings, 2019 We present a model of the dynamical evolution of relativistic heavy ion collisions, which combines second-order viscous hydrodynamics and microscopic transport.
Sangwook Ryu +2 more
doaj +1 more source