نتایج جستجو برای: pulse rate
تعداد نتایج: 1033906 فیلتر نتایج به سال:
Poor sensitivity to the interaural time difference (ITD) constrains the ability of human bilateral cochlear implant users to listen in everyday noisy acoustic environments. ITD sensitivity to periodic pulse trains degrades sharply with increasing pulse rate but can be restored at high pulse rates by jittering the interpulse intervals in a binaurally coherent manner (Laback and Majdak. Binaural ...
روش های متعددی برای جداسازی این نوع امولسیون ها وجود دارد، تکنیک انعقاد الکتریکی یکی از روش ها برای حذف روغن از امولسیون است. از این تکنولوژی برای تصفیه پساب های روغنی صنایع پتروشیمی و پالایشگاهی و جداسازی آب و نمک موجود در نفت خام استفاده شده است. هدف از انجام این آزمایشات جداسازی بنزن از امولسیون بنزن در آب با استفاده از میدان الکتریکی غیر یکنواخت بوده است. بدین منظور از یک ظرف جداساز 3 جداره...
We have carried out a survey for ‘giant pulses’ in 6 young, Vela-like pulsars. In no cases did we find single pulses with flux densities more than 10 times the mean flux density. However, in PSR B1706–44 we have detected giant micro-pulses very similar to those seen in the Vela pulsar. In PSR B1706–44 these giant micro-pulses appear on the trailing edge of the profile and have an intrinsic widt...
We analyzed the courtship song of the field cricket Gryllus assimilis. The song comprises two elements: groups of ca. 10 pulses (chirps) with low fundamental frequency (3.5-3.7 kHz) alternating with high-frequency (15-17 kHz) pulses (ticks) that usually occur as doublets. Some elements of courtship song are quite variable (high coefficient of variation) both within and between males, whereas ot...
The behavioral and physiologic effects of single, intravenous bolus doses of cocaine in 5 male human subjects were correlated with cocaine levels in saliva and blood. All measures were performed under double-blind conditions. Two test doses of cocaine (15 mg and 40 mg) and one placebo test dose were administered to each subject in a random, cross-over design. Each test day was separated by a mi...
In a small group of hypertensive patients studied at home, once daily early morning sotalol therapy effectively decreased lying, standing, and post-exercise blood pressure and pulse rate. A dose-response relationship was seen. Adverse effects were mild and transient. The once daily regimen is easy to administer and appears to give precision in blood pressure reduction. Providing there is no sub...
Article history: Available online 30 March 2010
The Bane Line. The base line is the neutral line of the record, the horizontal line the record takes late in diastole if the pulse rate is slow enough. Fn faster hearts, the base line can be approximated by placing a horizontal line such that the areas of the late cliastolic deflections above and below it are equal. In records secured by electrical amplification the base line can be obtained by...
Can incentives be effective when trying to encourage the development of good habits? We investigate the effect of paying people a non-trivial amount of money to attend an exercise facility a number of times during a one-month period. In two separate studies, we find that doing so leads to a large and significant increase in the average post-intervention attendance level relative to the control ...
BACKGROUND Patients at risk of rapid deterioration and critical illness often have preceding changes in physiological parameters. Track and trigger systems, such as the Modified Early Warning Score (MEWS) used in the UK, have been demonstrated to have some utility in identifying these patients particularly among general medical and surgical patients. AIM Assess the effectiveness of MEWS and t...
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