منابع مشابه
Timing and amplitude of wave reflection.
Timing and Amplitude of Wave Reflection To the Editor: Dr Mitchell is to be complemented on a perceptive, articulate editorial on detection and interpretation of wave reflection in the human arterial system.1 While we have differed in the past, modification of 2 points would bring his views into line with ours. First, we see no specific implication of “impedance matching” (increasing proximal a...
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supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...
15 صفحه اولInfluence of timing and magnitude of arterial wave reflection on left ventricular relaxation.
The influence of timing and magnitude of arterial wave reflection (WR) on afterload-dependent relaxation was evaluated in patients with a variety of heart diseases (group 1, age < 30 yr; group 2, age > 40 yr) and in dogs. While both femoral arteries were compressed (FC), WR returned just after the dicrotic notch (early diastole) in group 1 but before the dicrotic notch (late systole) in group 2...
متن کاملWave Reflection and Refraction at the Interface of Triclinic and Liquid Medium
A Mathematical model has been considered to study the reflection and refraction phenomenon of plane wave at the interface of an isotropic liquid medium and a triclinic (anisotropic) half-space. The incident plane qP wave generates three types of reflected waves namely quasi-P (qP), quasi-SV (qSV) and quasi-SH (qSH) waves in the tric...
متن کاملT-wave amplitude changes.
Scenario: This electrocardiographic (ECG) rhythm strip was obtained from a 74-year-old man who arrived at the emergency department (ED) with expressive aphasia and right-sided weakness. Consistent with a transient ischemic attack (TIA), his symptoms lasted 30 minutes and had resolved just prior to hospital arrival. He had experienced similar episodes in the past month. A recent ultrasound estim...
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ژورنال
عنوان ژورنال: Hypertension
سال: 2007
ISSN: 0194-911X,1524-4563
DOI: 10.1161/01.hyp.0000250823.15229.37