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

Principle of Equivalence01:18

Principle of Equivalence

2.6K
According to Albert Einstein (1897-1955), free-falling and feeling weightless are intrinsically linked. If a person were in free-fall under gravity, for example, diving towards the Earth from an airplane, they would feel completely weightless. Similarly, a person descending in a lift may feel partially weightless. Broadly speaking, it is assumed that an object in a uniform gravitational field and an object undergoing constant acceleration in the absence of gravity are under the same...
2.6K
Equivalent Couples01:28

Equivalent Couples

715
In mechanical engineering, the concept of equivalent couples plays a crucial role in understanding and analyzing various mechanical systems.
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
715
Causes of Similarity-Dissimilarity Effect01:26

Causes of Similarity-Dissimilarity Effect

268
The similarity-dissimilarity effect, a fundamental concept in social psychology, explains how interpersonal similarities and differences influence attraction and social interactions. This effect is supported by three key psychological perspectives: balance theory, social comparison theory, and consensual validation.Balance Theory and Cognitive ConsistencyBalance theory, developed by Fritz Heider, posits that individuals seek cognitive consistency in their relationships. When two people share...
268
Factors Influencing Attraction III: Similarity01:23

Factors Influencing Attraction III: Similarity

841
The similarity hypothesis suggests that individuals are more likely to form relationships with others who share similar attitudes, beliefs, values, and interests. This concept has been widely studied in social psychology, demonstrating that perceived similarity fosters interpersonal attraction. In an experiment supporting this hypothesis, participants were presented with fabricated information indicating that strangers held attitudes similar to their own. The results showed that participants...
841
Perceptual Constancy01:12

Perceptual Constancy

1.6K
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
1.6K
¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons01:03

¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons

4.2K
Protons in identical electronic environments within a molecule are chemically equivalent and have the same chemical shift. The replacement test is a useful tool to identify chemical equivalence and predict NMR spectra. A substituent replaces each of the protons being examined and the resulting molecules are compared. If the same molecule is obtained, the protons are equivalent or homotopic. Replacement of any hydrogens in ethane by chlorine yields chloroethane because all six protons are...
4.2K

You might also read

Related Articles

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

Sort by
Same author

Embedding EEG trajectories in a Möbius-like manifold: An exploratory study.

Neuroscience letters·2026
Same author

Optimal transport model for gas migration in the intestinal wall.

Biochimie·2026
Same author

Simulating tumor mitochondrial energetics through engineering-style energy metrics.

Bio Systems·2026
Same author

Takens' theorem to assess EEG traces: Regional variations in brain dynamics.

Neuroscience letters·2025
Same author

Charged Interfaces in the Brain: How Electrostatic Forces May Guide Cerebrospinal Fluid Dynamics.

The European journal of neuroscience·2025
Same author

Exploring the influence of water micro assemblies on protein folding, enzyme catalysis and membrane dynamics.

European biophysics journal : EBJ·2025
Same journal

Biological functions of BAF57, its role in disease pathogenesis, and treatment: From molecular mechanisms to clinical translation.

Progress in biophysics and molecular biology·2026
Same journal

Photonics-integrated and AI-enhanced medical sensing: From molecular diagnostics to real-time cell therapy monitoring.

Progress in biophysics and molecular biology·2026
Same journal

Uncovering the Biological Mechanisms of TREM2 with Molecular Simulations: A Comprehensive Review and Perspective.

Progress in biophysics and molecular biology·2026
Same journal

Advances in artificial joint testing driven by in situ mechanical characterization: From permeability of porous structures to dynamic wear monitoring.

Progress in biophysics and molecular biology·2026
Same journal

Proteostasis-driven redox adaptation in ferroptosis: the p62-Keap1-Nrf2 axis.

Progress in biophysics and molecular biology·2026
Same journal

NLRs and STANDs: a class of enthalpy and entropy dual-driven allosteric switches varying information entropies.

Progress in biophysics and molecular biology·2026
See all related articles

Related Experiment Video

Updated: Feb 19, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
07:34

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

18.0K

What is it like to be "the same"?

Arturo Tozzi1, James F Peters2

  • 1Center for Nonlinear Science, University of North Texas, 1155 Union Circle, #311427, Denton, TX 76203-5017, USA.

Progress in Biophysics and Molecular Biology
|November 5, 2017
PubMed
Summary
This summary is machine-generated.

A unifying principle connects physical and biological systems through topology. This research explores "matching description" and identity, proposing a novel mathematical approach, bio-BUT, to explain biological multiplicity from identity.

Keywords:
Borsuk-Ulam theoremComputationSystems dynamicsTopology

More Related Videos

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
08:12

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments

Published on: March 1, 2022

3.0K
Generating Strictly Controlled Stimuli for Figure Recognition Experiments
05:39

Generating Strictly Controlled Stimuli for Figure Recognition Experiments

Published on: March 18, 2019

5.6K

Related Experiment Videos

Last Updated: Feb 19, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
07:34

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

18.0K
A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
08:12

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments

Published on: March 1, 2022

3.0K
Generating Strictly Controlled Stimuli for Figure Recognition Experiments
05:39

Generating Strictly Controlled Stimuli for Figure Recognition Experiments

Published on: March 18, 2019

5.6K

Area of Science:

  • Topology
  • Mathematical Biology
  • Philosophy of Science

Background:

  • A unifying principle governs physical and biological systems.
  • Topological theorems, like Borsuk-Ulam, describe projection from planar to spherical activities.
  • The meaning of "matching description" in this context requires clarification.

Purpose of the Study:

  • To define "matching description" in relation to the principle of identity.
  • To explore the interconnectedness of "sameness", "equality", and "belonging together".
  • To introduce a novel, testable approach to understanding identity in physical and biological systems.

Main Methods:

  • Analysis of different formulations of the principle of identity.
  • Investigation of topological concepts related to projection and "matching description".
  • Development of a mathematical framework, bio-BUT, derived from the Borsuk-Ulam theorem.

Main Results:

  • "Matching description" is a general and malleable concept.
  • Intertwined levels of "sameness", "equality", and "belonging together" with mutual interactions were identified.
  • The bio-BUT approach offers insights into biological multiplicity from identity.

Conclusions:

  • The study provides a novel mathematical approach to identity.
  • This framework, bio-BUT, may explain biological "multiplicity from identity" in evolving organisms.
  • The findings offer new perspectives on biochemical arrangements and evolutionary processes.