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Induction

Induction

An emf is induced when the magnetic field in a coil is changed by pushing a bar magnet into or out of the coil. emfs of opposite signs are produced by motion in opposite directions, and the directions of emfs are also reversed by reversing poles. The same results are produced if the coil is moved rather than the magnet—it is the relative motion that is important. The faster the motion, the greater the emf. Additionally, there is no emf when the magnet is stationary relative to the coil.
A...

Self-Inductance

Self-Inductance

Mutual inductance arises when a current in one circuit produces a changing magnetic field that induces an emf in another circuit. On the other hand, self-inductance arises when the current passing through the circuit changes, creating a changing magnetic flux, resulting in inductance in the same circuit.
Consider a circuit connected to an AC source. As the current varies with time, the magnetic flux through the circuit correspondingly changes. Faraday's law tells us that an emf would...

Mutual Inductance

Mutual Inductance

Inductance is the property of a device that tells us how effectively it induces an emf in another device. In other words, it is a physical quantity that expresses the effectiveness of a given device.
When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. Therefore, this type of emf is called...

Inductive Reasoning

Inductive Reasoning

Inductive reasoning is a form of logical thinking that uses related observations to arrive at a general conclusion. It is uncertain and operates in degrees to which the conclusions are credible. As such, inductive arguments can be weak or strong, rather than valid or invalid, and conclusions can be used to formulate testable, falsifiable hypotheses.
Inductive reasoning is common in descriptive science. A life scientist makes observations and records them. This data can be qualitative or...

Mathematical Induction

Mathematical Induction

Mathematical induction is a structured method of proof used to confirm the truth of statements involving natural numbers. Consider the sum of the first n natural numbers:This formula describes a pattern that appears to hold true as more terms are added. To verify that it is valid for all natural numbers, mathematical induction proceeds in two essential steps. The first is the base case, where the formula is tested for the initial value, typically n = 1. Substituting into both sides confirms the...

Calculation of Self-inductance

Calculation of Self-inductance

The self-inductance of a circuit, often simply called the inductance, is a purely geometric factor that depends only on the circuit component's structure. More specifically, it depends on the shape and size of the component that lets the flux pass through it, thus inducing an electric field that opposes any current passing through it.
Since the effect of the induced electric field and the back EMF generated depends on the rate of change of current and the self-inductance, the inductance...

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Related Experiment Video

Updated: Jan 29, 2026

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Published on: December 17, 2010

Experimental Tubulogenesis Induction Model in the Mouse.

Aleksandra Rak-Raszewska¹

¹Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland. Aleksandra.Rak-Raszewska@oulu.fi.

Methods in Molecular Biology (Clifton, N.J.)

|February 12, 2019

Summary

Ex vivo kidney culture, established in 1953, allows controlled study of renal development and tubulogenesis. This method offers advantages over traditional in vivo research for understanding kidney formation.

Keywords:

BIO LiCl Metanephric mesenchyme induction Nephrogenesis Spinal cord Tubulogenesis Ureteric bud

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Last Updated: Jan 29, 2026

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

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Induction of Experimental Autoimmune Hypophysitis in SJL Mice

Induction of Experimental Autoimmune Hypophysitis in SJL Mice

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Area of Science:

Developmental biology
Nephrology
Regenerative medicine

Background:

Kidney development and tubulogenesis have been a focus of research for nearly 70 years.
Understanding these processes is crucial for treating kidney diseases.

Purpose of the Study:

To highlight the utility of the ex vivo metanephric mesenchyme induction model.
To emphasize its advantages in studying renal development compared to in vivo methods.

Main Methods:

Utilizes the ex vivo kidney culture technique, first established in 1953.
Allows for controlled environmental conditions and cellular manipulation.
Adaptable to advancements in biological and medical research.

Main Results:

The ex vivo model provides a controlled environment for studying kidney development.
Cellular manipulations can be performed to investigate specific developmental pathways.
The technique has evolved significantly since its inception.

Conclusions:

The ex vivo kidney culture method remains a valuable tool for renal development research.
It offers distinct advantages over traditional in vivo studies.
Continued modifications ensure its relevance in modern biological and medical fields.