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

Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion03:48

Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion

31.9K
Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target. At room temperature, a gaseous molecule will experience billions of collisions per second. The mean free path is the average distance a molecule travels between collisions. The mean free path increases with decreasing pressure; in general, the mean free path for a gaseous molecule will be...
31.9K
Diffusion01:12

Diffusion

228.9K
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...
228.9K
Diffusion01:21

Diffusion

7.2K
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...
7.2K
Passive Diffusion: Overview and Kinetics01:17

Passive Diffusion: Overview and Kinetics

1.6K
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...
1.6K
Divergence and Stokes' Theorems01:06

Divergence and Stokes' Theorems

4.1K
The divergence and Stokes' theorems are a variation of Green's theorem in a higher dimension. They are also a generalization of the fundamental theorem of calculus. The divergence theorem and Stokes' theorem are in a way similar to each other; The divergence theorem relates to the dot product of a vector, while Stokes' theorem relates to the curl of a vector. Many applications in physics and engineering make use of the divergence and Stokes' theorems, enabling us to write...
4.1K
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

65.7K
In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
65.7K

You might also read

Related Articles

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

Sort by
Same author

Prevalence of hepatitis B and C markers in blood donors deferred from donating blood due to hepatitis-related risk factors.

Asian journal of transfusion science·2026
Same author

Identification of epithelial, mesenchymal, and platelet-associated circulating tumour cells with translational implications in oral squamous cell carcinoma.

Scientific reports·2026
Same author

Recalibration of the European Kidney Function Consortium eGFR Equation for the Indian Population.

Kidney international reports·2026
Same author

An Energy Autonomous Microneedle Array-Based Sensing System for Continuous Biomarker Monitoring.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Endoscopic Ultrasound-guided Transluminal Drainage of Walled-off Necrosis using Naso-cystic Drain with Metal Stent versus Metal Stent Alone: A Randomized Controlled Pilot Study.

Pancreas·2026
Same author

The future of diagnostics in Africa.

Nature medicine·2026
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Mar 21, 2026

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

9.1K

Diffusion in a wedge geometry: First-passage statistics under stochastic resetting.

Fazil Najeeb1, Arnab Pal2,3, V V Prasad1

  • 1Cochin University of Science and Technology, Department of Physics, Kochi, Kerala 682022, India.

Physical Review. E
|March 20, 2026
PubMed
Summary
This summary is machine-generated.

Stochastic resetting in a 2D wedge significantly alters diffusion dynamics. Resetting can enhance absorption rates and bias escape pathways towards favorable boundaries, as confirmed by simulations.

More Related Videos

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.5K
Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K

Related Experiment Videos

Last Updated: Mar 21, 2026

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

9.1K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.5K
Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K

Area of Science:

  • Physics
  • Statistical Mechanics
  • Complex Systems

Background:

  • Diffusion processes are fundamental in nature.
  • First-passage time statistics characterize diffusion.
  • Geometric confinement influences diffusion behavior.

Purpose of the Study:

  • Investigate the impact of stochastic resetting on diffusion in a 2D wedge.
  • Analyze how resetting affects first-passage time properties.
  • Determine conditions under which resetting enhances boundary absorption or escape.

Main Methods:

  • Theoretical analysis of diffusion with stochastic resetting.
  • Derivation of probability currents and conditional first-passage quantities.
  • Langevin-type numerical simulations for verification.

Main Results:

  • The second moment of first-passage time diverges for wedge angles α > π/4 without resetting.
  • Stochastic resetting modifies first-passage properties in both bounded and unbounded regimes.
  • Resetting can consistently enhance absorption/escape rates and bias pathways.

Conclusions:

  • Stochastic resetting offers a mechanism to control diffusion dynamics in confined geometries.
  • The wedge angle and resetting strategy determine the efficiency of absorption and escape.
  • Theoretical predictions align well with numerical simulation results.