This paper presents an application of the Hilbert–Huang transform (HHT) and ensemble correlation for detection of the transient evoked otoacoustic emissions (TEOAEs), and high resolution time–frequency mapping. The HHT provides a powerful tool for nonlinear analysis of nonstationary signals such as TEOAEs. Since the HHT itself does not distinguish between signal and noise it was used with ensem...

The mammalian cochlea receives feedback from the brainstem medial olivocochlear (MOC) efferents, whose putative 'antimasking' function is to adjust cochlear amplification and enhance peripheral signal detection in adverse listening environments. Human studies have been inconsistent in demonstrating a clear connection between this corticofugal system and behavioral speech-in-noise (SIN) listenin...

The aqueous mixtures of light gas molecules under low-temperature and high-pressure conditions are candidates to form gas hydrate clathrates. The formation of gas hydrate may lead to various problems and extra charges in natural gas production and processing. The presence of hydrate crystals forming a stable solid phase can potentially block the wells, pipes, and process facilities. To avoid su...

Introduction: There is still no finding available that can show the malignant clinical course in patients with middle cerebral artery stroke. The aim of this study was to compare Doppler ultrasound findings in patients with malignant and non-malignant middle cerebral artery stroke in order to obtain its prognostic value in detecting malignant course. Method:</stro...

Background. Sensorineural hearing loss after procedures including extracorporeal circulation and hypothermia is greater than general population. Mild hypothermia has a protective role on cochlea; however, deep hypothermia may result in cochlear injury. This research aimed at assessing auditory function in children after open heart surgery in relation to different hypothermic techniques. Subject...

The effect of chronic inflammation induced by complete Freund's adjuvant (CFA) on anterior blood vessels of knee joint and its diameter was studied. Blood flow changes in response to phenylephrine (αl-adrenoceptor agonist) in CFA-treated and contralateral knee joints were observed over a 40-day period, using laser Doppler flowmetery (LDF) technique. Unilateral injection of CFA (0.2 ml) increase...

Introduction: Multiple myeloma (MM) is typically presented with abundant monoclonal secretion of one type of immunoglobulin. The other classes of immunoglobulins, which are uninvolved and not secreted by malignant plasma cells, could be decreased. A number of previous studies reported the effect of suppression of uninvolved immunoglobulins on the outcome of patients with myeloma. However, its e...