Results 31 to 40 of about 21,884 (318)

Fast and slow effects of medial olivocochlear efferent activity in humans. [PDF]

open access: yesPLoS ONE, 2011
The medial olivocochlear (MOC) pathway modulates basilar membrane motion and auditory nerve activity on both a fast (10-100 ms) and a slow (10-100 s) time scale in guinea pigs.
Wei Zhao, Sumitrajit Dhar
doaj   +1 more source

The Human Auditory System and Audio [PDF]

open access: yesApplied Acoustics (Elsevier), Volume 211, August 2023, 109507, 2023
This work reviews the human auditory system, elucidating some of the specialized mechanisms and non-linear pathways along the chain of events between physical sound and its perception. Customary relationships between frequency, time, and phase--such as the uncertainty principle--that hold for linear systems, do not apply straightforwardly to the ...
arxiv   +1 more source

Alterations of voltage-dependent calcium channel currents in basilar artery smooth muscle cells at early stage of subarachnoid hemorrhage in a rabbit model. [PDF]

open access: yesPLoS ONE, 2014
OBJECTIVE: To investigate the changes in the currents of voltage-dependent calcium channels (VDCCs) in smooth muscle cells of basilar artery in a rabbit model of subarachnoid hemorrhage (SAH). METHODS: New Zealand white rabbits were randomly divided into
Xianqing Shi   +4 more
doaj   +1 more source

Depletion of resident macrophages does not alter sensory regeneration in the avian cochlea. [PDF]

open access: yesPLoS ONE, 2012
Macrophages are the primary effector cells of the innate immune system and are also activated in response to tissue injury. The avian cochlea contains a population of resident macrophages, but the precise function of those cells is not known. The present
Mark E Warchol   +2 more
doaj   +1 more source

Effects of Self-Made Prescription Compound Rhodiola on the Ultrastructure of Podocytes in Rats with Type 2 Diabetic Nephropathy

open access: yesEmergency Medicine International, 2022
Background. We attempt to discuss the function of self-made prescription compound Rhodiola rosea on the kidneys of rats with type 2 diabetic nephropathy (DN), through studying the effects of self-made rescription compound Rhodiola rosea on the ...
Shaojing Yuan   +6 more
doaj   +1 more source

A ratchet mechanism for amplification in low-frequency mammalian hearing [PDF]

open access: yesProc. Natl. Acad. Sci. U.S.A. 107, 4973-4978 (2010), 2010
The sensitivity and frequency selectivity of hearing result from tuned amplification by an active process in the mechanoreceptive hair cells. In most vertebrates the active process stems from the active motility of hair bundles. The mammalian cochlea exhibits an additional form of mechanical activity termed electromotility: its outer hair cells (OHCs ...
arxiv   +1 more source

The physics of hearing: fluid mechanics and the active process of the inner ear [PDF]

open access: yesRep. Progr. Phys. 77:7 (2014), 2014
Most sounds of interest consist of complex, time-dependent admixtures of tones of diverse frequencies and variable amplitudes. To detect and process these signals, the ear employs a highly nonlinear, adaptive, real-time spectral analyzer: the cochlea.
arxiv   +1 more source

The evolution of the various structures required for hearing in Latimeria and tetrapods

open access: yesIBRO Neuroscience Reports, 2023
Sarcopterygians evolved around 415 Ma and have developed a unique set of features, including the basilar papilla and the cochlear aqueduct of the inner ear.
Bernd Fritzsch   +2 more
doaj  

AUTOMATIZATION OF THE METHOD OF DIAGNOSTICS OF THE HEARING [PDF]

open access: yesBiomedicinskaâ Inženeriâ i Èlektronika, 2017
The scientific work is devoted to the circuitry and the methodology of creating a computer audiograph. The analysis of literary sources on the structure, parameters and use of audiometers and audiographs is carried out.
Novikova L.V.   +2 more
doaj   +1 more source

Hydromechanical Structure of the Cochlea Supports the Backward Traveling Wave in the Cochlea In Vivo

open access: yesNeural Plasticity, 2018
The discovery that an apparent forward-propagating otoacoustic emission (OAE) induced basilar membrane vibration has created a serious debate in the field of cochlear mechanics. The traditional theory predicts that OAE will propagate to the ear canal via
Fangyi Chen   +4 more
doaj   +1 more source

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