Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Pulse

Pulse

When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...

Pulse

Pulse

The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.

Pulse rhythm

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...

Rectangular and Triangular Pulse Function

Rectangular and Triangular Pulse Function

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,

Regulation of Pulse

Regulation of Pulse

Pulse regulation involves physiological mechanisms that ensure adequate blood flow throughout the body. The heartbeat, regulated by the autonomic nervous system, is influenced by hormonal balance, physical activity, and emotional state.

You might also read

Related Articles

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

Sort by

Same author

Minimally invasive extraperitoneal posterior neurectomy for anterior cutaneous nerve entrapment syndrome (ACNES): Primary description of the MEPONE technique and clinical outcomes.

Hernia : the journal of hernias and abdominal wall surgery·2026

Same author

Additive and Multiplicative Effects of Socially Stigmatized Identities Using Linear Regression to Model Effects on Self-Reported Overall Health as Reported in the All of Us Research Program: Quantitative Analysis.

JMIR formative research·2026

Same author

Curvature-Driven Droplet Transport and Spontaneous Motion Using Concentric Ring Structures.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

Surface engineering of yeast microcarriers to enhance droplet retention and antimicrobial efficacy on hydrophobic plant surfaces.

Colloids and surfaces. B, Biointerfaces·2025

Same author

Robot-Assisted Extraperitoneal Ventral Hernia Repair-Experience From the First 160 Consecutive Operations With Lateral eTEP and eTAR Techniques.

Journal of abdominal wall surgery : JAWS·2024

Same author

Artificial Intelligence-What to Expect From Machine Learning and Deep Learning in Hernia Surgery.

Journal of abdominal wall surgery : JAWS·2024

Search research articles

Related Experiment Video

Updated: Mar 17, 2026

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Published on: October 19, 2014

Pulse Size Distributions in Tunable Resistive Pulse Sensing.

Eva Weatherall, Peter Hauer, Robert Vogel^1,2

¹Izon Science Limited, 8C Homersham Place, P.O. Box 39168, Burnside, Christchurch 8053, New Zealand.

Analytical Chemistry

|July 30, 2016

Summary

This summary is machine-generated.

Broadening of particle size distributions in resistive pulse sensing is explained by particle trajectories near conical pore edges. Increased pore size and applied pressure widen distributions, impacting submicron particle measurement accuracy.

More Related Videos

Determination of Zeta Potential via Nanoparticle Translocation Velocities through a Tunable Nanopore: Using DNA-modified Particles as an Example

Determination of Zeta Potential via Nanoparticle Translocation Velocities through a Tunable Nanopore: Using DNA-modified Particles as an Example

Published on: October 26, 2016

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Published on: December 2, 2022

Related Experiment Videos

Last Updated: Mar 17, 2026

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Quantification and Size-profiling of Extracellular Vesicles Using Tunable Resistive Pulse Sensing

Published on: October 19, 2014

Determination of Zeta Potential via Nanoparticle Translocation Velocities through a Tunable Nanopore: Using DNA-modified Particles as an Example

Determination of Zeta Potential via Nanoparticle Translocation Velocities through a Tunable Nanopore: Using DNA-modified Particles as an Example

Published on: October 26, 2016

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Published on: December 2, 2022

Area of Science:

Nanotechnology
Analytical Chemistry
Biophysics

Background:

Accurate submicron particle size measurement is crucial for various scientific applications.
Resistive pulse sensing is a common technique for particle sizing, but pulse size distribution broadening can affect accuracy.
Understanding factors influencing pulse size distribution is essential for optimizing measurement reliability.

Purpose of the Study:

To investigate the causes of pulse size distribution broadening in resistive pulse sensing.
To elucidate the relationship between pore geometry, experimental conditions, and particle trajectory.
To enhance the understanding and application of tunable resistive pulse sensing (TRPS) for precise particle characterization.

Main Methods:

Utilized tunable resistive pulse sensing (TRPS) with conical pores and monodisperse polystyrene particles (200-800 nm).
Performed finite element simulations to model particle trajectories and pulse generation.
Systematically varied pore size, applied voltage, and transmembrane pressure.

Main Results:

Pulse size distributions broadened with increasing pore size, often showing two distinct peaks.
Simulations indicated that particle trajectories near the pore edge generate larger pulses.
Distribution broadening was independent of applied voltage but increased with applied pressure.
Reversible pressure application allowed repeated measurement of individual particles.
Hydrodynamic and electrophoretic focusing were identified as factors influencing particle trajectories.

Conclusions:

Particle trajectories, particularly those near the pore edge, significantly contribute to pulse size distribution broadening.
Applied pressure is a key factor influencing distribution width, offering a tunable parameter.
TRPS, combined with computational modeling, provides a powerful approach for understanding and mitigating broadening effects in particle sizing.