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Related Concept Videos

Body Temperature01:07

Body Temperature

1.4K
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
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Body Temperature01:25

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The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
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Factors Affecting Body Temperature01:28

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As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:
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Increased Body Temperature01:25

Increased Body Temperature

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A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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Decreased Body Temperature01:29

Decreased Body Temperature

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A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
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Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

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Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
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Updated: Jan 26, 2026

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
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Elastic Shape Memory Hybrids Programmable at Around Body-Temperature for Comfort Fitting.

Tao Xi Wang1, Chris Renata2, Hong Mei Chen3

  • 1School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. WA0003XI@e.ntu.edu.sg.

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New silicone-based elastic shape memory hybrids demonstrate excellent shape memory and high elasticity. These materials show great potential for comfortable, adaptive fitting applications at body temperature.

Keywords:
comfort fittingelasticityhardening timeshape memory effectshape memory hybrid

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Area of Science:

  • Materials Science
  • Polymer Science
  • Biomedical Engineering

Background:

  • Shape memory materials offer unique deformation and recovery capabilities.
  • Elasticity is crucial for applications requiring dynamic shape adaptation.
  • Silicone-based hybrids present opportunities for tunable material properties.

Purpose of the Study:

  • To fabricate and characterize silicone-based elastic shape memory hybrids.
  • To evaluate their shape memory performance and mechanical properties.
  • To assess their suitability for comfort fitting applications at body temperature.

Main Methods:

  • Fabrication of silicone-based elastic shape memory hybrid materials.
  • Investigation of shape memory effect and mechanical behaviors at room temperature (programmed and unprogrammed states).
  • Analysis of material fitting properties at 37 °C.

Main Results:

  • The fabricated hybrids exhibit significant shape memory effects.
  • Materials consistently demonstrate high elasticity across tested conditions.
  • A fitting time of 10 minutes or more was observed at 37 °C.

Conclusions:

  • Silicone-based elastic shape memory hybrids possess desirable properties for adaptive materials.
  • The materials show excellent potential for use in comfort fitting applications.
  • Further development could lead to advanced elastic shape memory devices.