Results 1 to 10 of about 220,387 (295)

Understanding axon guidance: attraction, repulsion, and statistical physics

open access: yesNeural Regeneration Research, 2015
Understanding axon guidance is important for developing therapies to restore neuronal connections damaged by injury or disease. Axons migrate in response to extracellular guidance molecules that induce or inhibit axon outgrowth activity within the axon.
William G Wadsworth
doaj   +4 more sources

Motion noise changes directional interaction between transparently moving stimuli from repulsion to attraction. [PDF]

open access: yesPLoS ONE, 2012
To interpret visual scenes, visual systems need to segment or integrate multiple moving features into distinct objects or surfaces. Previous studies have found that the perceived direction separation between two transparently moving random-dot stimuli is
Jennifer L Gaudio, Xin Huang
doaj   +2 more sources

Fast efficient coding and sensory adaptation in gain-adaptive recurrent networks [PDF]

open access: yesNature Communications
As the statistics of sensory environments often change, neural sensory systems must adapt to maintain useful representations. Efficient coding prescribes that neuronal tuning curves should be optimized to the prior, but whether they can adapt rapidly is ...
Arthur Prat-Carrabin   +2 more
doaj   +2 more sources

Diffusional aging at water/oil interfaces laden with charged nanoparticles studied by single-molecule tracking [PDF]

open access: yesNature Communications
The adsorption of charged nanoparticles at water-oil interfaces constitutes a fundamental phenomenon, underlying pivotal technologies spanning from emulsion stabilization to the sophisticated fabrication of foams.
Yuehua Zhao   +4 more
doaj   +2 more sources

Mislocalization of visual stimuli: independent effects of static and dynamic attention. [PDF]

open access: yesPLoS ONE, 2011
Shifts of visual attention cause systematic distortions of the perceived locations of visual objects around the focus of attention. In the attention repulsion effect, the perceived location of a visual target is shifted away from an attention-attracting ...
Sung-en Chien   +2 more
doaj   +1 more source

Bistability and Switching Behavior in Moving Animal Groups

open access: yesNortheast Journal of Complex Systems, 2022
Moving animal groups such as schools of fish and flocks of birds frequently switch between different group structures. Standard models of collective motion have been used successfully to explain how stable groups form via local interactions between ...
Daniel Strömbom   +5 more
doaj   +1 more source

Existence of bounded global solutions for fully parabolic attraction-repulsion

open access: yesElectronic Journal of Differential Equations, 2021
This article concerns the parabolic attraction-repulsion chemotaxis system with  signal-dependent sensitivities $$\displaylines{ u_t=\Delta u-\nabla \cdot (u\chi(v)\nabla v) +\nabla \cdot (u\xi(w)\nabla w), \quad x \in \Omega,\; t>0, \cr v_t=\Delta v-v ...
Yutaro Chiyo, Masaaki Mizukami
doaj   +1 more source

Transition mechanisms of translational motions of bubbles in an ultrasonic field

open access: yesUltrasonics Sonochemistry, 2023
The translation behaviors of oscillating bubbles are closely related to the polymerizations and dispersions between them, which are crucial for the ultrasonic cavitation effect.
Xiaojiao Wang   +5 more
doaj   +1 more source

Temporary Behavioral Responses to Playbacks by a Pest Parrot and Implications for Management [PDF]

open access: yesAnimal Behavior and Cognition, 2022
Human-wildlife interactions continue to increase due to anthropogenic disturbances, with some interactions resulting in conflict. Leveraging a taxa’s bias for a particular sensory cue is a promising management avenue for reducing the potential and ...
Cesar O. Estien   +6 more
doaj   +1 more source

Antigravity, an Answer to Nature’s Phenomena including the Expansion of the Universe

open access: yesAdvances in High Energy Physics, 2020
The gravitational attraction force being proportional to the mass has been experimentally shown for several hundred years now, but no gravitational repulsion has been identified within the accepted scientific reasoning.
C. K. Gamini Piyadasa
doaj   +1 more source

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