Results 11 to 20 of about 1,274,311 (192)

Origin, synchronization, and propagation of sleep slow waves in children [PDF]

open access: yesNeuroImage, 2023
Study Objectives: Sleep slow wave activity, as measured using EEG delta power (
Anna Castelnovo   +8 more
doaj   +3 more sources

Determination of the interaction impedance of helix slow-wave structures. [PDF]

open access: yes, 2000
The computer simulation of helix travelling-wave tubes requires accurate information about the phase velocity, interaction impedance and attenuation of the helix slow wave structure at each frequency.
R.G. Carter, Carter, R. G.
core   +5 more sources

The propagation and damping of slow magnetoacoustic waves in the solar atmosphere [PDF]

open access: yes, 2012
The propagation and damping of slow magnetoacoustic waves in the solar atmosphere is investigated, with particular emphasis placed on waves with periodicities of five minutes. The basic model of a uniform temperature loop is extended by the addition of
Owen, Nicholas Robert
core   +2 more sources

Spatial-Temporal Heterogeneity in the Deformation and Damage of Rock Samples: Experimental Study Using Digital Image Correlation Analysis

open access: yesApplied Sciences, 2022
In situ observations and laboratory experiments showed that slow deformation waves widely exist in geomedia under loading conditions. Slow deformation waves’ behavior exhibits some similarities in media ranging from the scale as large as the Earth’s ...
Fayuan Yan, Chengzhi Qi, Renliang Shan
doaj   +1 more source

Herbal extracts modulate the amplitude and frequency of slow waves in circular smooth muscle of mouse small intestine [PDF]

open access: yes, 2004
Background: Herbal preparations like STW 5 (Iberogast(R)) are widely used drugs in the treatment of dyspepsia and motility-related disorders of the gastrointestinal tract.
Weiser, D.   +6 more
core   +1 more source

MHD mode conversion of fast and slow magnetoacoustic waves in the solar corona [PDF]

open access: yes, 2010
There are three main wave types present in the Sun’s atmosphere: Alfvén waves and fast and slow magnetoacoustic waves. Alfvén waves are purely magnetic and would not exist if it was not for the Sun’s magnetic field.
McDougall-Bagnall, A. M. Dee
core   +2 more sources

B waves: a systematic review of terminology, characteristics, and analysis methods

open access: yesFluids and Barriers of the CNS, 2019
Background Although B waves were introduced as a concept in the analysis of intracranial pressure (ICP) recordings nearly 60 years ago, there is still a lack consensus on precise definitions, terminology, amplitude, frequency or origin. Several competing
Isabel Martinez-Tejada   +4 more
doaj   +1 more source

Power and Coherence in the EEG of the Rat: Impact of Behavioral States, Cortical Area, Lateralization and Light/Dark Phases

open access: yesClocks & Sleep, 2020
The sleep-wake cycle is constituted by three behavioral states: wakefulness (W), non-REM (NREM) and REM sleep. These states are associated with drastic changes in cognitive capacities, mostly determined by the function of the thalamo-cortical system ...
Alejandra Mondino   +7 more
doaj   +1 more source

The Relationship Between Socioeconomic Status and Scalp Event-Related Potentials: A Systematic Review

open access: yesFrontiers in Human Neuroscience, 2021
Several decades of behavioral research have established that variations in socioeconomic status (SES) are related to differences in cognitive performance.
Hiran Perera-W.A.   +3 more
doaj   +1 more source

Observational signatures of waves and flows in the solar corona [PDF]

open access: yes, 2015
DM acknowledges support of a Royal Society University Research Fellowship and a KU Leuven Research Council senior research fellowship (SF/12/008). The research leading to these results has also received funding from the European Commission Seventh ...
Antolin, Patrick   +3 more
core   +1 more source

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