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

Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

65.1K
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
65.1K
Phase Transitions02:31

Phase Transitions

23.2K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.2K
Properties of Transition Metals02:58

Properties of Transition Metals

30.0K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
30.0K
Phase Transitions: Melting and Freezing02:39

Phase Transitions: Melting and Freezing

15.2K
Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
15.2K
Phase Transitions: Sublimation and Deposition02:33

Phase Transitions: Sublimation and Deposition

20.2K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
20.2K
Factors Influencing Attraction II: Physical Attraction01:21

Factors Influencing Attraction II: Physical Attraction

261
Physical attractiveness plays a crucial role in shaping interpersonal attraction, influencing first impressions, social interactions, and long-term relationship dynamics. Psychological research consistently demonstrates that attractiveness affects social evaluations and behavioral outcomes in various contexts.Influence on Social InteractionsResearch has shown that individuals perceived as physically attractive often experience preferential treatment in social and professional settings. One...
261

You might also read

Related Articles

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

Sort by
Same author

Hybrid magnetic Janssen effect arising from percolating ferromagnetic grain networks.

Soft matter·2026
Same author

Load-dependent power-law exponent in creep rupture of heterogeneous materials.

Physical review. E·2026
Same author

Multiscale stress dynamics in sheared liquid foams revealed by tomo-rheoscopy.

Nature communications·2025
Same author

Capillary and priming pressures control the penetration of yield-stress fluids through non-wetting 2D meshes.

Soft matter·2025
Same author

FoamQuant: a Python package for time-resolved 3D image quantification of cellular materials.

Journal of synchrotron radiation·2025
Same author

Copper(I)-Thiolate Coordination Polymers for In Situ Temperature Sensing in PDMS.

ACS applied materials & interfaces·2025

Related Experiment Video

Updated: Feb 8, 2026

Stripe Assay to Study the Attractive or Repulsive Activity of a Protein Substrate Using Dissociated Hippocampal Neurons
08:11

Stripe Assay to Study the Attractive or Repulsive Activity of a Protein Substrate Using Dissociated Hippocampal Neurons

Published on: June 19, 2016

11.2K

Interacting Cracks Obey a Multiscale Attractive to Repulsive Transition.

Marie-Émeline Schwaab1, Thierry Biben1, Stéphane Santucci2,3

  • 1Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France.

Physical Review Letters
|July 7, 2018
PubMed
Summary

The study resolves the dilemma of crack behavior, identifying geometric conditions for repulsive crack growth. This explains why predicting final crack paths is challenging due to multiscale transitions.

More Related Videos

Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces
06:14

Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces

Published on: September 11, 2018

7.0K
Antibody Staining in C. Elegans Using "Freeze-Cracking"
13:10

Antibody Staining in C. Elegans Using "Freeze-Cracking"

Published on: October 14, 2013

23.8K

Related Experiment Videos

Last Updated: Feb 8, 2026

Stripe Assay to Study the Attractive or Repulsive Activity of a Protein Substrate Using Dissociated Hippocampal Neurons
08:11

Stripe Assay to Study the Attractive or Repulsive Activity of a Protein Substrate Using Dissociated Hippocampal Neurons

Published on: June 19, 2016

11.2K
Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces
06:14

Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces

Published on: September 11, 2018

7.0K
Antibody Staining in C. Elegans Using "Freeze-Cracking"
13:10

Antibody Staining in C. Elegans Using "Freeze-Cracking"

Published on: October 14, 2013

23.8K

Area of Science:

  • Solid Mechanics
  • Materials Science
  • Fracture Mechanics

Background:

  • The principle of local symmetry in linear elastic fracture mechanics has been challenged by observed repulsive crack growth.
  • Understanding crack interaction and path prediction is crucial for material integrity and structural safety.

Purpose of the Study:

  • To resolve the dilemma concerning the validity of the principle of local symmetry under specific crack growth conditions.
  • To identify the precise geometric conditions that lead to repulsive crack growth between two approaching cracks.
  • To explain the multiscale behavior of the repulsive-attractive transition in crack propagation.

Main Methods:

  • Theoretical analysis of crack interaction under linear elastic fracture mechanics.
  • Numerical simulations to model crack growth and path evolution.
  • Investigation of geometric parameters influencing crack behavior.

Main Results:

  • Precise geometric conditions for the repulsive phase of crack growth were determined.
  • A multiscale behavior of the repulsive-attractive transition was revealed.
  • The findings explain the common occurrence of repulsive interactions and the difficulty in predicting final crack paths.

Conclusions:

  • The principle of local symmetry is valid under specific geometric constraints, and its apparent violation is explained by these conditions.
  • The multiscale nature of crack transition is key to understanding complex crack trajectories.
  • This work provides a framework for better prediction of crack paths in materials.