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Related Concept Videos

Autophagic Cell Death01:18

Autophagic Cell Death

Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
Necrosis01:16

Necrosis

Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Role of Matrix Metalloproteases in Degradation of ECM01:23

Role of Matrix Metalloproteases in Degradation of ECM

Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult body.
A...
Thomson's e/m Experiment01:19

Thomson's e/m Experiment

In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
The Sarcomere01:08

The Sarcomere

A sarcomere is a microscopic segment repeating in a myofibril. The sarcomere fundamentally consists of two main myofilaments: thick filaments called myosin and thin filaments called actin. These filaments interact by sliding past each other in response to stimulus. In addition to myosin and actin, several other proteins, such as tropomyosin, troponin, titin, nebulin, myomesin, α-actinin, and dystrophin, play crucial roles in regulating, structuring, and functioning of the sarcomere.
Each myosin...
Muscles of the Thorax01:25

Muscles of the Thorax

The thorax muscles are central to the body's respiration and provide essential support and movement for the upper body. They are intricately designed to facilitate the complex breathing process while also contributing to the structural integrity and mobility of the chest and upper limbs.
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Related Experiment Video

Updated: Jul 23, 2026

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
08:55

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis

Published on: August 7, 2018

Thomas McMahon: a dedication in memoriam.

R D Howe1, R E Kronauer

  • 1Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA. howe@deas.harvard.edu

Annual Review of Biomedical Engineering
|November 20, 2001
PubMed
Summary

Thomas A. McMahon pioneered biomechanics, applying simple mathematical models and experiments to understand locomotion and scaling. His influential work spanned cardiac assist devices and orthopedic biomechanics.

Area of Science:

  • Biomechanics
  • Biomedical Engineering

Background:

  • Pioneering research in terrestrial locomotion, allometry, and scaling.
  • Significant contributions to cardiac assist devices and orthopedic biomechanics.
  • Utilized simple mathematical models validated by creative experimentation.

Discussion:

  • McMahon's interdisciplinary approach bridged engineering and biology.
  • His work exemplified the power of simplified models in complex scientific inquiry.
  • A legacy of innovation in applying physical principles to biological systems.

Key Insights:

  • Advanced understanding of how organisms move and scale.
  • Developed foundational concepts for medical device engineering.
  • Demonstrated effective integration of theoretical and experimental methods.

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Related Experiment Videos

Last Updated: Jul 23, 2026

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
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Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis

Published on: August 7, 2018

Posterior Approach for Debridement of the Psoas Abscess
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Posterior Approach for Debridement of the Psoas Abscess

Published on: March 2, 2020

Robotic Taj Mahal Hepatectomy for Hilar Cholangiocarcinoma
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Outlook:

  • Continued influence on biomechanical research and education.
  • Inspiration for interdisciplinary approaches in science and engineering.
  • Enduring impact on the fields of locomotion, scaling, and medical devices.