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Related Concept Videos

Properties of the Root Locus01:05

Properties of the Root Locus

392
The root locus method is an invaluable tool for analyzing higher-order systems without needing to factor the denominator of the transfer function. A pole of the system is identified when the characteristic polynomial in the transfer function's denominator equals zero.
To determine if a point lies on the root locus, the criterion involves the sum of angles contributed by all poles and zeros to that point. Specifically, this sum must be an odd multiple of 180 degrees. The gain at any point on...
392
Root Loci for Positive-Feedback Systems01:23

Root Loci for Positive-Feedback Systems

471
The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...
471
Construction of Root Locus01:15

Construction of Root Locus

548
The construction of a root locus involves several key steps to analyze and visualize the behavior of a system's poles with varying gain. The number of branches in the root locus equals the number of closed-loop poles and is symmetrical about the real axis.
For positive gain values, the root locus exists on the real axis to the left of an odd number of finite open-loop poles or zeros. The root locus starts at the open-loop poles and traces the paths of the closed-loop poles as the gain...
548
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

1.3K
The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
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Wheatstone Bridge01:29

Wheatstone Bridge

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An ohmmeter is a resistance-measuring device. It works by applying a voltage to a resistor of unknown resistance and measuring the current across the resistor. The resistance value is deduced using Ohm's law. Usually, the standard configuration of an ohmmeter comprises a voltmeter or an ammeter. However, such configurations are limited in accuracy because the meters alter the voltage applied to the resistor and the current that flows through it.
Thus, for accurate resistance measurements, a...
3.0K
Rotter's Locus of Control01:14

Rotter's Locus of Control

1.4K
Julian Rotter introduced the concept of locus of control, a cognitive factor that significantly influences personality development and learning. Locus of control refers to an individual's beliefs about the extent of control they have over events in their lives. According to Rotter, this belief system can be categorized into two types: internal and external locus of control.
Individuals with an internal locus of control believe that their personal efforts and decisions directly affect their...
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Updated: May 3, 2026

RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level
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Three comments on Teller's "bridge locus".

J Anthony Movshon1

  • 1Center for Neural Science, New York University, New York, New York.

Visual Neuroscience
|January 31, 2014
PubMed
Summary
This summary is machine-generated.

The "bridge locus" concept for visual perception may be too imprecise. Its relationship to the neural correlate of consciousness (NCC) suggests a need for new frameworks beyond simple neural geography.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Philosophy of Mind

Background:

  • The concept of a
  • Purpose of the Study
  • Main Methods
  • Main Results
  • Conclusions

Purpose of the Study:

  • To critically evaluate the
  • To explore alternative frameworks for understanding visual perception and awareness.

Main Methods:

  • Review of evidence on visual pathway architecture.
  • Analysis of current theories on perceptual representations.
  • Examination of the basis of perceptual awareness.

Main Results:

  • The 'bridge locus' is likely embedded within a complex network of representations.
  • The geographical basis of the 'bridge locus' may be an oversimplification.
  • The 'bridge locus' shares imprecision with the neural correlate of consciousness (NCC).

Conclusions:

  • The 'bridge locus' concept may be inadequate for precise scientific reasoning.
  • Rethinking the framework for brain activity and perceptual experience is necessary.
  • Future research may benefit from models less reliant on strict neural geography.