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Shunt Admittances

Shunt Admittances

Shunt admittances play a crucial role in the analysis of transmission lines, particularly for three-phase systems with neutral conductors. When a uniformly charged conductor is positioned above the Earth, it induces an equal but opposite charge on its surface. This interaction creates electric field lines between the conductor and the Earth.
To model this effect, the method of images is employed. This method involves replacing the Earth with an image conductor that mirrors the original...

Source Transformation for AC Circuits

Source Transformation for AC Circuits

The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.

Coronary Circulation

Coronary Circulation

The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...

Block Diagram Reduction

Block Diagram Reduction

The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
The first step in this process is the identification and relocation of a branch point. A branch point, where a...

Anatomy of the Circulatory System

Anatomy of the Circulatory System

The human circulatory system consists of blood, blood vessels that carry blood away from the heart, around the body, and back to the heart, and the heart itself, which acts as a central pump. The systemic circuit supplies blood to the whole body, the coronary circuit supplies blood to the heart, and the pulmonary circuit supplies blood flow between the heart and lungs.

Control of Power Flow

Control of Power Flow

There are several methods to control power flow in power systems:

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Related Experiment Video

Updated: Jul 31, 2025

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus

Published on: October 14, 2022

The Shunt of It.

Brittany M Scarpato¹, Jamie McDonald², Pinar Bayrak-Toydemir²

¹Division of Pulmonary and Critical Care Medicine, University of Utah Hospital, Salt Lake City, UT; Division of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Murray, UT.

|May 10, 2023

Summary

This study reports the first case of isolated pulmonary arteriovenous malformations (PAVMs) linked to a BMPR2 gene variant, expanding the known genetic causes of PAVMs beyond hereditary hemorrhagic telangiectasia.

Area of Science:

Cardiology
Genetics
Pulmonology

Background:

Pulmonary arteriovenous malformations (PAVMs) are rare vascular anomalies.
PAVMs are frequently associated with hereditary hemorrhagic telangiectasia (HHT).

Keywords:

bone morphogenetic protein receptor-2 pulmonary arterial hypertension pulmonary arteriovenous malformation shunt variant

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Pulmonary arterial hypertension (PAH) is also linked to genetic factors.