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

Diffusion01:12

Diffusion

215.5K
Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...
215.5K
Diffusion01:21

Diffusion

6.1K
Diffusion is a type of passive transport. In passive transport, a substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. For example, take the diffusion of substances through the air. When someone opens a perfume bottle in a room filled with people, the perfume is at its highest concentration in the bottle and is at its lowest at the edges of the room. The perfume vapor will diffuse, or spread away, from the...
6.1K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

7.1K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
7.1K
Relationship Formation02:12

Relationship Formation

45.2K
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
45.2K
Contact-dependent Signaling01:19

Contact-dependent Signaling

46.8K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
46.8K
Passive Diffusion: Overview and Kinetics01:17

Passive Diffusion: Overview and Kinetics

1.2K
Passive diffusion is a critical process that allows small lipophilic drugs to cross the cell membrane along a concentration gradient. This mechanism's efficiency depends on four primary factors: the membrane's surface area, the drug's lipid-water partition coefficient, the concentration gradient, and the membrane's thickness.
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Winter-associated downregulation of ovarian NR5A2 correlates with impaired follicle development in the striped hamster (Cricetulus barabensis).

Scientific reports·2026
Same author

Molecular Mechanisms of Resistance to Cyhalofop-Butyl in Barnyard Grass (<i>Echinochloa crus-galli</i>).

Plants (Basel, Switzerland)·2026
Same author

Circ_QRICH1 promotes osteoarthritis progression by sponging miR-214-3p to impact ATF3-mediated chondrocyte ferroptosis.

Translational research : the journal of laboratory and clinical medicine·2026
Same author

Dietary intake and hyperuricemia among US adults: A matched case-control analysis of NHANES 2001-2020.

Medicine·2026
Same author

Transcriptome reveals probiotics mitigating MCLR-induced reproductive toxicity in male zebrafish: Regulation of reproductive endocrine, oxidative stress, and inflammatory response.

Journal of environmental sciences (China)·2026
Same author

Conformity to popular, not average, opinions: Models, data, and evolution.

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

Related Experiment Video

Updated: Jan 4, 2026

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging
06:34

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging

Published on: September 2, 2016

6.8K

Information diffusion in signed networks.

Xiaochen He1,2, Haifeng Du1, Marcus W Feldman1,3

  • 1Center for Administration and Complexity Science, Xi'an Jiaotong University, Xi'an, China.

Plos One
|October 30, 2019
PubMed
Summary
This summary is machine-generated.

This study generalizes information diffusion models to signed networks. Structural balance in these networks can remove path dependence and enhance diffusion speed and magnitude.

More Related Videos

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
10:44

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline

Published on: December 7, 2021

2.6K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.1K

Related Experiment Videos

Last Updated: Jan 4, 2026

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging
06:34

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging

Published on: September 2, 2016

6.8K
Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
10:44

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline

Published on: December 7, 2021

2.6K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.1K

Area of Science:

  • Information diffusion
  • Network science
  • Sociophysics

Background:

  • Information diffusion is studied across sociology, economics, physics, and computer science.
  • Existing models often overlook the role of positive and negative relationships.

Purpose of the Study:

  • Generalize the linear threshold model to signed networks.
  • Analyze information diffusion dynamics using balance theory.
  • Investigate the impact of structural balance on path dependence and diffusion.

Main Methods:

  • Generalization of the linear threshold model.
  • Analysis based on balance theory.
  • Simulations on signed networks with positive and negative links.

Main Results:

  • Signed networks can exhibit path dependence.
  • Structural balance removes path dependence with balanced initial nodes.
  • Positive and negative link diffusion dynamics are contrasting.
  • More positive links increase activation and reduce path dependence but decrease predictability.
  • Balanced structures enhance diffusion magnitude/speed, remove path dependence, and cause polarization.

Conclusions:

  • Structural balance is key to managing information diffusion in signed networks.
  • Network structure significantly influences diffusion patterns and predictability.
  • Findings have implications for understanding social and information dynamics.