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

Gap Junctions01:37

Gap Junctions

57.3K
Multicellular organisms employ a variety of ways for cells to communicate with each other. Gap junctions are specialized proteins that form pores between neighboring cells in animals, connecting the cytoplasm between the two, and allowing for the exchange of molecules and ions. They are found in a wide range of invertebrate and vertebrate species, mediate numerous functions including cell differentiation and development, and are associated with numerous human diseases, including cardiac and...
57.3K
Gap Junctions01:27

Gap Junctions

9.8K
The cytoplasm of adjacent animal cells can exchange small molecules, ions, and secondary messengers via the communication channels which form the gap junctions. These junctions comprise a few hundred to thousands of molecular channels, each made of two halves, called the connexon hemichannel. A connexon is a hexamer of six transmembrane connexin proteins, which assemble radially, thus forming a pore or channel in the center. One connexon hemichannel docks with a corresponding connexon on the...
9.8K
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

1.3K
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
1.3K
Rectangular and Triangular Pulse Function01:19

Rectangular and Triangular Pulse Function

2.0K
The unit rectangular pulse function is mathematically represented by a rectangular function centered at the origin with a height of one unit. This function is defined by two parameters: T, which specifies the center location of the pulse along the time axis, and τ, which determines the pulse duration.
For example, consider a rectangular pulse with a 5V amplitude, a 3-second duration, and centered at t=2 seconds. This pulse can be expressed using the rectangular function, written as,
2.0K
Distribution of Stresses in a Narrow Rectangular Beam01:11

Distribution of Stresses in a Narrow Rectangular Beam

547
In studying beam stress distribution, examining an elemental section is essential. To determine the average shearing stress on this face, the calculated shear is divided by the surface area. Importantly, shearing stresses on the beam's transverse and horizontal planes mirror each other, indicating a consistent stress distribution along the upper region of the beam. Notably, shearing stresses are absent at the beam's upper and lower surfaces due to the absence of applied forces in these...
547
Equations of Motion: Rectangular Coordinates and Cylindrical Coordinates01:21

Equations of Motion: Rectangular Coordinates and Cylindrical Coordinates

786
Understanding the motion of particles is a fundamental aspect of classical mechanics, and the choice of the coordinate system plays a pivotal role in unraveling the complexities of their dynamics.
When a particle moves relative to an inertial frame, the equations of motion can be expressed using rectangular components. If the motion is confined to the x-y plane, the equations having the x and y coordinates only can be used to simplify the mathematical representation.
However, when particles...
786

You might also read

Related Articles

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

Sort by
Same author

Soliton fractional charge of disordered graphene nanoribbon.

Journal of physics. Condensed matter : an Institute of Physics journal·2019
Same author

Relationships between Single Nucleotide Polymorphism Markers and Meat Quality Traits of Duroc Breeding Stocks in Korea.

Asian-Australasian journal of animal sciences·2016
Same author

Stability of Anomalous States of a Local Potential in Graphene.

Journal of nanoscience and nanotechnology·2016
Same author

Follistatin-like 3 is a mediator of exercise-driven bone formation and strengthening.

Bone·2015
Same author

Coupling of surface and lowest Landau level states in a rectangular graphene dot.

Journal of nanoscience and nanotechnology·2011
Same author

Presenilin enhancer-2 (PSENEN), a component of the gamma-secretase complex, is involved in adipocyte differentiation.

Domestic animal endocrinology·2009

Related Experiment Video

Updated: Feb 11, 2026

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea
09:54

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea

Published on: May 10, 2019

12.7K

Topological Gap States of Rectangular Armchair Ribbon.

Y H Jeong1, S R Eric Yang1

  • 1Department of Physics, Korea University, Seoul, 02841, Korea.

Journal of Nanoscience and Nanotechnology
|April 22, 2018
PubMed
Summary

Topological gap states in graphene armchair ribbons are localized along zigzag edges. Their integer end charge is linked to the Zak phase, confirmed by analytical and numerical calculations.

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Topological Materials

Background:

  • Graphene armchair ribbons exhibit unique electronic properties due to their specific edge structures.
  • Topological states in materials can lead to novel functionalities.
  • The Zak phase is a key topological invariant in condensed matter physics.

Purpose of the Study:

  • To analytically compute the Zak phase of a periodic armchair ribbon.
  • To investigate the relationship between end charges of topological gap states and the Zak phase.
  • To explore the effect of a staggered potential on end charges.

Main Methods:

  • Analytical computation of the Zak phase for a periodic armchair ribbon.
  • Numerical computation of end charges for topological gap states.

More Related Videos

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP
08:14

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Published on: April 20, 2015

18.3K
Immunolabeling and Counting Ribbon Synapses in Young Adult and Aged Gerbil Cochleae
08:25

Immunolabeling and Counting Ribbon Synapses in Young Adult and Aged Gerbil Cochleae

Published on: April 21, 2022

2.9K

Related Experiment Videos

Last Updated: Feb 11, 2026

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea
09:54

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea

Published on: May 10, 2019

12.7K
Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP
08:14

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP

Published on: April 20, 2015

18.3K
Immunolabeling and Counting Ribbon Synapses in Young Adult and Aged Gerbil Cochleae
08:25

Immunolabeling and Counting Ribbon Synapses in Young Adult and Aged Gerbil Cochleae

Published on: April 21, 2022

2.9K
  • Theoretical analysis of the influence of staggered potentials.

    • Main Results:

    • An explicit analytical formula for the Zak phase was derived.
    • The computed Zak phase values were consistent with numerically obtained integer end charges.
    • Non-integer end charges were shown to be possible in the presence of a staggered potential.

    Conclusions:

    • The study establishes a clear connection between the Zak phase and end charges in graphene ribbons.
    • The findings provide a deeper understanding of topological states in low-dimensional materials.
    • The research offers insights into manipulating topological properties via external potentials.