Effect of Skin-Electrode Impedance on Unipolar Limb Leads Electrocardiography

A Quantitative Comparison of Unipolar and Augmented Unipolar Limb Leads

Goldberger has claimed that his augmented unipolar limb leads (aV) are identical except for a 50 per cent larger amplitude and interchangeable with Wilson's original V leads, but this claim was not supported by quantitative evidence. The advantage of larger amplitudes explains the increasing preference for the aV leads. A quantitative comparison between V and aV leads revealed such tremendous v...

Skin-electrode impedance and its effect on recording cardiac potentials.

Unipolar electrocardiography in pulmonary stenosis.

Congenital pulmonary stenosis with intact ventricular septum is a relatively common malformation of the heart. The stenosis varies from almost complete obliteration to a minimal decrease in the diameter of the orifice. The stenosis is usually of the valve, but it may be either of the infundibulum or of the lower bulbar orifice. The atrial septum may be complete, imperfectly developed, or it may...

Electrode Jelly in Electrocardiography.

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...