نتایج جستجو برای: corner frequency 072 hz
تعداد نتایج: 516499 فیلتر نتایج به سال:
Multi-electrode array recordings of spike and local field potential (LFP) activity were made from primary auditory cortex of 12 normal hearing, ketamine-anesthetized cats. We evaluated 259 spectro-temporal receptive fields (STRFs) and 492 frequency-tuning curves (FTCs) based on LFPs and spikes simultaneously recorded on the same electrode. We compared their characteristic frequency (CF) gradien...
Background & Aims: Type 2 diabetes is commonly associated with autonomic neuropathy. The aim of the present study was investigated the impact of glycemic control and disease duration (DD) on autonomic nervous function in Type-2 Diabetic Neuropathy Men by analysis of their heart rate variability (HRV). Materials & Methods: fifty-three Man with diabetes and peripheral neuropathy were recru...
Neuraxial blockade causes arterial hypotension. Transcutaneous electrical nerve stimulation (TENS) at the Neiguan (PC-6) and Jianshi (PC-5) reduces the severity of hypotension after spinal anaesthesia, but did not clarify the optimal stimulus frequency. We hypothesized that the stimulus frequency of TENS at the PC-6 and PC-5 points would influence the severity of hypotension after epidural anae...
Background: Many studies have shown that electromagnetic field (EMFs) decrease anxiety. In this study we studied the effect of low frequency electromagnet fields on decreasing the induced anxiety by histamine in mice. Methods: 32 male albino mice at the weight of 30gr were classified in 4 groups (n=8), and were injected histamine (5mg/kg) 3 group of them were exposed to electromagnetic field...
Abstract. We present an extensive dataset of highly accurate absolute travel times and travel-time residuals teleseismic P waves recorded by the AlpArray Seismic Network complementary field experiments in years from 2015 to 2019. The is intended serve as basis for tomography upper mantle below greater Alpine region. In addition, data may be used constraints full-waveform inversion recordings. c...
For high-frequency sinusoidal carriers, the threshold for detecting sinusoidal amplitude modulation increases when the signal modulation frequency increases above about 120 Hz. Using the concept of a modulation filter bank, this effect might be explained by (1) a decreasing sensitivity or greater internal noise for modulation filters with center frequencies above 120 Hz; and (2) a limited span ...
introduction: the aim of this study was to evaluate and compare the scanning electron microscope (sem) of indirect composite conditioned by erbium-doped yttrium aluminum garnet (er:yag) laser, neodymium-doped yttrium aluminium garnet (nd:yag) laserand carbon dioxide (co2) laser. methods: 18 indirect composite blocks (gc gradia da2, japan) with 15 × 10 × 10 mm dimensions were made. the bonding s...
A simple relation between the root mean square (rms) of the ground acceleration and earthquake spectral (or source) parameters is introduced: EQ-TARGET;temp:intralink-;;55;590 Arms ! "2π#Ω0 f0 !!!!!!!!! πκT p "1$ πκf0 1:50:25# 2 ; in which Ω0 is the low-frequency displacement spectral plateau, f0 is the corner frequency, κ is an attenuation parameter, and T is the data interval. This result use...
BACKGROUND Recent studies suggest that both high frequency (10-20 Hz) and low frequency (1 Hz) repetitive transcranial magnetic stimulation (rTMS) have an antidepressant effect in some individuals. Electrophysiologic data indicate that high frequency rTMS enhances neuronal firing efficacy and that low frequency rTMS has the opposite effect. METHODS We investigated the antidepressant effects o...
OBJECTIVE To determine the contribution of fast and slow inward channels to the electrocardiogram (ECG) of ventricular fibrillation. METHODS Ventricular fibrillation was induced by endocardial electrical stimulation in pigs anaesthetised with pentobarbitone sodium (30 mg/kg intravenously). ECGs simultaneously recorded from the body surface (lead II) and from the endocardium were studied by po...
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