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Related Concept Videos

Cable Subjected to Concentrated Loads01:28

Cable Subjected to Concentrated Loads

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Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
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Tension01:10

Tension

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Tension is a force along the length of a medium, in particular, a force carried by a flexible medium, such as a rope or cable. The word "tension" comes from Latin, meaning "to stretch". Not coincidentally, the flexible cords that carry muscle forces to other parts of the body are called tendons. Any flexible connector, such as a string, rope, chain, wire, or cable, can exert pull only parallel to its length; so, a force carried by a flexible connector is a tension with a...
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Cable Subjected to a Distributed Load01:24

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The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
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Cable Subjected to Its Own Weight01:13

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Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
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Gross Anatomy of Skeletal Muscles01:12

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The connective tissues play a significant role in arranging the muscle fibers into a hierarchical structure that forms a complete muscle. Consider a muscle like the bicep brachii, commonly called the bicep. This muscle comprises thousands of muscle fibers enclosed by a protective layer of connective tissue called the endomysium. The endomysium is primarily composed of reticular fibers, a type of thin collagen fiber. It allows the exchange of nutrients and waste products at the fiber level,...
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Cable: Problem Solving01:29

Cable: Problem Solving

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When dealing with a cable that is fixed to two supports and subjected to uniform loading, it is crucial to determine the maximum tension in the cable. This process can be broken down into several key steps, as outlined below:
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Updated: Apr 21, 2026

Author Spotlight: Isolation of Long Muscle Fibers from Mouse Hindlimb Muscles for Studying Excitation-Contraction Coupling Across Fiber Types
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Bulk muscles, loose cables.

Chamari R D G Liyanage1, Venkata Kodali1

  • 1Geraldton Regional Hospital, Geraldton, Western Australia, Australia.

BMJ Case Reports
|October 19, 2014
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Summary
This summary is machine-generated.

Bodybuilding supplements pose hidden dangers. A young man experienced atrial fibrillation from yohimbine in a supplement, highlighting risks of unlisted ingredients in muscle-building products.

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Area of Science:

  • Cardiology
  • Toxicology
  • Sports Medicine

Background:

  • Increasing use of bodybuilding supplements driven by online marketing.
  • Underestimation of health risks associated with supplement ingredients.
  • Importance of thorough patient history in emergency medicine.

Observation:

  • A young, healthy male presented with palpitations and malaise.
  • Initial examination and tests were inconclusive.
  • Electrocardiogram (ECG) revealed atrial fibrillation.

Findings:

  • Detailed history revealed the patient was using muscle-building supplements.
  • Symptoms onset correlated with the ingestion of a supplement containing yohimbine.
  • Patient recovered fully after discontinuing the supplement.

Implications:

  • Highlights potential cardiac dangers of undisclosed supplement ingredients, specifically yohimbine.
  • Underscores the need for consumer awareness regarding over-the-counter supplement safety.
  • Emphasizes the critical role of comprehensive history-taking in diagnosing adverse effects from supplements.