Results 41 to 50 of about 1,559,551 (373)

Phase separation of competing memories along the human hippocampal theta rhythm

open access: yeseLife, 2022
Competition between overlapping memories is considered one of the major causes of forgetting, and it is still unknown how the human brain resolves such mnemonic conflict.
Casper Kerrén   +3 more
doaj   +1 more source

The 6dF Galaxy Survey: baryon acoustic oscillations and the local Hubble constant [PDF]

open access: yes, 2011
We analyse the large-scale correlation function of the 6dF Galaxy Survey (6dFGS) and detect a baryon acoustic oscillation (BAO) signal at 105h −1 Mpc. The 6dFGS BAO detection allows us to constrain the distance–redshift relation at zeff = 0.106.
F. Beutler   +9 more
semanticscholar   +1 more source

Network deficiency exacerbates impairment in a mouse model of retinal degeneration

open access: yesFrontiers in Systems Neuroscience, 2012
Neural oscillations play an important role in normal brain activity, but also manifest during Parkinson’s disease, epilepsy, and other pathological conditions. The contribution of these aberrant oscillations to the function of the surviving brain remains
Christopher Wai-Man Yee   +2 more
doaj   +1 more source

Neural excitability and sensory input determine intensity perception with opposing directions in initial cortical responses

open access: yeseLife, 2021
Perception of sensory information is determined by stimulus features (e.g., intensity) and instantaneous neural states (e.g., excitability). Commonly, it is assumed that both are reflected similarly in evoked brain potentials, that is, larger amplitudes ...
Tilman Stephani   +4 more
doaj   +1 more source

Bri2 BRICHOS chaperone rescues impaired fast-spiking interneuron behavior and neuronal network dynamics in an AD mouse model in vitro

open access: yesNeurobiology of Disease, 2021
Synchronized and properly balanced electrical activity of neurons is the basis for the brain's ability to process information, to learn, and to remember.
Yuniesky Andrade-Talavera   +4 more
doaj  

Medium spiny neurons activity reveals the discrete segregation of mouse dorsal striatum

open access: yeseLife, 2021
Behavioral studies differentiate the rodent dorsal striatum (DS) into lateral and medial regions; however, anatomical evidence suggests that it is a unified structure.
Javier Alegre-Cortés   +3 more
doaj   +1 more source

Glory Oscillations in the Index of Refraction for Matter-Waves [PDF]

open access: yes, 2002
We have measured the index of refraction for sodium de Broglie waves in gases of Ar, Kr, Xe, and nitrogen over a wide range of sodium velocities. We observe glory oscillations -- a velocity-dependent oscillation in the forward scattering amplitude.
A. P. Nefedov   +16 more
core   +2 more sources

Scanning for oscillations

open access: yesJournal of Neural Engineering, 2015
Oscillations are an important aspect of brain activity, but they often have a low signal-to-noise ratio (SNR) due to source-to-electrode mixing with competing brain activity and noise. Filtering can improve the SNR of narrowband signals, but it introduces ringing effects that may masquerade as genuine oscillations, leading to uncertainty as to the true
Alain de Cheveigné   +2 more
openaire   +3 more sources

Electrical resonance mitigation scheme based on damping controller for wind farm integration through VSC-HVDC system

open access: yesThe Journal of Engineering, 2019
Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) technology promotes the development and utilisation of large-scale wind power, but the power oscillation might occur due to the interaction between two control systems. In
Xiaobao Hu   +4 more
doaj   +1 more source

On the existence of Hopf bifurcations in the sequential and distributive double phosphorylation cycle

open access: yesMathematical Biosciences and Engineering, 2020
Protein phosphorylation cycles are important mechanisms of the post translational modification of a protein and as such an integral part of intracellular signaling and control. We consider the sequential phosphorylation and dephosphorylation of a protein
Carsten Conradi   +2 more
doaj   +1 more source

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