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Both global and regional systolic function are to be checked. Global measures include ejection fraction, stroke volume, end systolic volume. (For measurement of systolic function using M-mode and 2D echocardiography refer to the section on Echocardiography.) In diastolic dysfunction there is generally presence of left ventricular hypertrophy. The transmitral flow is studied by pulsed Doppler. In normals the early filling velocity (E-wave) is larger than the velocity during atrial contraction (A-wave) and the descent is fast. In diastolic dysfunction there are in general 2 types of patterns. When relaxation is impaired the E-wave becomes smaller and its deceleration time is prolonged and the A-wave becomes taller. With restrictive physiology the E-wave becomes taller and the deceleration time is shorter and the A-wave is smaller. There are also abnormalities in the pulmonary venous flow patterns.
Hydrophily - Cross-pollination All hydrophytes are not necessarily pollinated by water. In fact most of the aquatic plant are anemophilous, e.g. Alisma, Nymphaea. Like anemoph
Explain the Pathogens of forest insects? Caterpillars that defoliate forest trees have main economic impacts. Many such species go through periodic outbreaks. The forces which
Tenofovir disoproxil fumarate (TDF, Viread) Tenofovir DF is the only nucleotide RTI available for treatment of HIV. It is a prodrug of tenofovir, a potent inhibitor of HIV rep
Explain Water and electrolyte imbalance during kwashiorkor? The total body water and especially the extracellular fluid volume are increased in all forms of PEM. At the same ti
If molecules diffuse down their concentration gradient and achieve equal concentration throughout a container or cell, does all movement stop? Explain your answer.
Collagen Helix Collagen has a large amount of glycine (25%) and proline (and hydroxyproline, 25%). They run parallel, form a right handed super-helix that is stabilized b
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Membrane is any delicate sheet that divides one region from other blocking or permitting (selectively or completely) the passage of substances. The skin, for example, can be consid
What are the types of evaluation of lateral earth forces acting on retaining structures? This section seeks to introduce you to the evaluation of lateral earth forces acting on
Conformational Protection - Azotobacter In conformational protection a Fe-S redox protein provides protection to the enzyme. The protein gets oxidised in the presence of oxyge
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