Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Plastic Deformations of Members with a Single Plane of Symmetry01:21

Plastic Deformations of Members with a Single Plane of Symmetry

90
When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...
90
Unsymmetric Bending01:18

Unsymmetric Bending

331
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from those in symmetrical bending, and are essential for designing structures to withstand different loading conditions. In unsymmetrical bending, the neutral axis—where stress is zero—does not necessarily align with the geometric axes of the cross-section. The...
331
Cyclic Processes And Isolated Systems01:19

Cyclic Processes And Isolated Systems

2.8K
A thermodynamic system with zero heat exchange and work is an isolated system. For these systems, the internal energy remains constant.
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state. 
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
2.8K
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

488
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
488
Woodward–Hoffmann Selection Rules and Microscopic Reversibility01:34

Woodward–Hoffmann Selection Rules and Microscopic Reversibility

3.1K
Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
3.1K
Deformations in a Symmetric Member in Bending01:18

Deformations in a Symmetric Member in Bending

166
When analyzing the deformation of a symmetric prismatic member subjected to bending by equal and opposite couples, it becomes clear that as the member bends, the originally straight lines on its wider faces curve into circular arcs, with a constant radius centered at a point known as Point C. This phenomenon helps to understand the stress and strain distribution within the member more clearly.
When the member is segmented into tiny cubic elements, it is observed that the primary stress...
166

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The hippocampus as a small-world cognitive map.

bioRxiv : the preprint server for biology·2026
Same author

Neural representations of popularity and leadership status relate to conformity in daily life.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Mapping developmental patterns of intrinsic timescale.

bioRxiv : the preprint server for biology·2026
Same author

Rise-and-fall dynamics reveal a molecular and cellular vulnerability axis in prion-like <i>α</i>-synuclein propagation.

bioRxiv : the preprint server for biology·2026
Same author

Collaborative relationships, disciplinary and global culture, social identity and scientific status shape how scholars cite prior work.

Communications psychology·2026
Same author

Gastric epithelium from BRCA1 and BRCA2 carriers harbors increased double-stranded DNA damage and enhanced growth potential.

Molecular cancer research : MCR·2026
Same journal

Measurement Contextuality and Planck's Constant.

New journal of physics·2026
Same journal

Enhanced extracellular matrix remodeling due to embedded spheroid fluidization.

New journal of physics·2025
Same journal

Spin waves across three-dimensional, close-packed nanoparticles.

New journal of physics·2024
Same journal

Floquet engineering of optical lattices with spatial features and periodicity below the diffraction limit.

New journal of physics·2024
Same journal

Surface science motivated by heating of trapped ions from the quantum ground state.

New journal of physics·2024
Same journal

Thermodynamic selection: mechanisms and scenarios.

New journal of physics·2023
See all related articles

Related Experiment Video

Updated: Jul 4, 2025

Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.6K

Breaking reflection symmetry: evolving long dynamical cycles in Boolean systems.

Mathieu Ouellet1, Jason Z Kim2, Harmange Guillaume3,4

  • 1Department of Electrical & Systems Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, United States of America.

New Journal of Physics
|February 8, 2024
PubMed
Summary
This summary is machine-generated.

Symmetry in interaction networks promotes long cycles crucial for biological functions. Evolutionary processes favor symmetric structures, suggesting symmetry

Keywords:
Boolean networksdynamical systemstructural motifssymmetrysymmetry breaking

More Related Videos

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.2K
Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
05:45

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

2.6K

Related Experiment Videos

Last Updated: Jul 4, 2025

Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.6K
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.2K
Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
05:45

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

2.6K

Area of Science:

  • Complex Systems
  • Network Science
  • Theoretical Biology

Background:

  • Interacting dynamical systems exhibit complex global dynamics from local rules.
  • Long dynamical cycles are fundamental in natural systems, particularly biology (e.g., circadian and cell cycles).
  • Understanding the network structures that generate these crucial cycles remains an open challenge.

Purpose of the Study:

  • To investigate the relationship between network structure and the emergence of cyclic dynamics.
  • To identify specific structural motifs that either promote or inhibit cyclic behavior.
  • To explore the role of symmetry in driving and evolving cyclic dynamics within these systems.

Main Methods:

  • Utilized a Boolean interaction network model to simulate system dynamics.
  • Analyzed network structures to identify motifs associated with cycle support and suppression.
  • Simulated an artificial evolutionary process to observe the selection of network motifs.
  • Examined the over-representation of dynamical reflection symmetries in biological network models.

Main Results:

  • Identified specific network motifs that enhance or suppress cyclic dynamics.
  • Demonstrated that dynamical reflection symmetry in interaction networks significantly enhances cyclic behavior.
  • Observed that motifs breaking reflection symmetry are selected against in evolutionary simulations.
  • Found dynamical reflection symmetries to be over-represented in Boolean models of natural biological systems.

Conclusions:

  • Established a direct link between symmetry and functionality in interacting dynamical systems.
  • Provided evidence for a causal role of symmetry in the evolution of dynamical functionality.
  • Highlighted the importance of structural symmetry in generating and maintaining essential biological cycles.