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Related Concept Videos

Strain Energy01:13

Strain Energy

505
Strain energy is a fundamental concept in the field of materials science and structural engineering, describing the energy absorbed by a material or structure when it is deformed under load.
Consider a rod that is fixed at one end and subjected to an axial force at the free end. This axial force induces stress within the rod, leading to its elongation. As the axial force increases, so does the elongation of the rod, illustrating a direct relationship between the force applied and the resulting...
505
Measurements of Strain01:27

Measurements of Strain

1.8K
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
1.8K
Thermal Strain01:19

Thermal Strain

2.0K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.0K
True Stress and True Strain01:28

True Stress and True Strain

362
Engineering stress is calculated as the load divided by the original, undeformed cross-sectional area. It approximates a material under load. This approximation is especially relevant post-yield in ductile materials. Though engineering stress-strain diagrams are often used for their convenience and accessibility, they can sometimes fall short in accuracy, particularly when dealing with large strain values.
In contrast, true stress offers a more precise portrayal. It is computed by dividing the...
362
Strain and Elastic Modulus01:15

Strain and Elastic Modulus

3.7K
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
3.7K
Transformation of Plane Strain01:12

Transformation of Plane Strain

204
When analyzing elongated structures like bars subjected to uniformly distributed loads, it is essential to understand the transformation of plane strain when coordinate axes are rotated. This transformation helps to assess how material deformation characteristics vary with orientation, which is crucial in materials science and structural engineering.
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
204

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Related Experiment Video

Updated: Jul 27, 2025

Intermediate Strain Rate Material Characterization with Digital Image Correlation
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Intermediate Strain Rate Material Characterization with Digital Image Correlation

Published on: March 1, 2019

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Strains of

John Kallassy1, Emily Gagnon1, Dawn Rosenberg1

  • 1Bactana Corp, Farmington, Connecticut, USA.

BMJ Open Diabetes Research & Care
|June 5, 2023
PubMed
Summary

Faecalibacterium prausnitzii (FPZ) compositions effectively lowered blood glucose and improved glucose tolerance in prediabetic and diabetic mice. This suggests FPZ may be a viable oral treatment for managing diabetes and pre-diabetes.

Keywords:
Glucose Tolerance TestGlycated Hemoglobin AHypoglycemiaPrediabetic State

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Last Updated: Jul 27, 2025

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Measuring Local Tissue Strains in Tendons via Open-Source Digital Image Correlation

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Production of a Strain-Measuring Device with an Improved 3D Printer

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Area of Science:

  • Microbiology
  • Metabolic disease research
  • Gut microbiome studies

Background:

  • Faecalibacterium prausnitzii is a key gut bacterium linked to numerous health conditions.
  • Reduced F. prausnitzii abundance is associated with metabolic diseases, including diabetes.
  • F. prausnitzii plays a role in physiological processes and glucose metabolism.

Purpose of the Study:

  • To investigate the effects of F. prausnitzii (FPZ) compositions on glucose metabolism.
  • To assess FPZ's impact on prediabetic and type 2 diabetic mice.
  • To evaluate FPZ as a potential probiotic or postbiotic treatment.

Main Methods:

  • Diet-induced obese mice models (prediabetic and type 2 diabetic) were used.
  • Placebo-controlled trials administered live FPZ, killed FPZ, and FPZ extracts.
  • Key metrics included fasting blood glucose, glucose tolerance tests, and HbA1c levels.

Main Results:

  • Oral administration of live FPZ or extracts lowered fasting blood glucose.
  • FPZ treatment improved glucose tolerance in prediabetic and diabetic mice.
  • Longer-term FPZ treatment reduced HbA1c levels without causing hypoglycemia.

Conclusions:

  • FPZ formulations effectively lower blood glucose and HbA1c in diabetic mice.
  • FPZ demonstrates improved glucose response compared to controls.
  • FPZ shows promise as an oral therapeutic for pre-diabetes and type 2 diabetes management.