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

Reaction Quotient

Reaction Quotient

The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ⇌ x C + y D, the reaction quotient is derived directly from the stoichiometry of the balanced equation as

Reaction Rate

Reaction Rate

The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...

Reaction Mechanisms

Reaction Mechanisms

Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:

Support Reactions

Support Reactions

A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
The purpose of the supports is to prevent the translational motion of the system by applying an equal and opposite force and to prevent the system's rotation by applying...

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Reaction Yield

Reaction Yield

The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The theoretical yield assumes the complete conversion of the limiting reactant into the desired product. The amount of product that is obtained by performing the reaction is called the actual yield, and it may be less than or (very rarely) equal to the theoretical yield.

You might also read

Related Articles

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

Sort by

Same author

Emergency Department-Initiated Hospice and Palliative Care Consultation Among Older Adults: Protocol for a Systematic Review and Meta-Analysis.

JMIR research protocols·2026

Same author

Where Evidence-Based Medicine Meets AI: Promise, Pitfalls, and Practice.

AEM education and training·2026

Same author

SCALES-AI: A Supervision- and Context-Aligned Entrustment Framework for Integrating Artificial Intelligence Into Emergency Medicine Education.

AEM education and training·2026

Same author

Associations of the Composite Pulmonary Embolism Shock Score in the Emergency Department With Short-Term Clinical Outcomes.

Annals of emergency medicine·2026

Same author

Ultrasound-guided multifidus injection with 5 % dextrose for lumbar facet syndrome in the emergency department.

The American journal of emergency medicine·2025

Same author

Toward Standardized Products Containing Biomass of Psilocybe Cubensis Fungi.

Journal of AOAC International·2025

Same journal

Translating AI-Based Biopsy Sparing into Clinically Actionable Decision-Making for BI-RADS 4A+ Breast Lesions.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

Same journal

Comparative Study of Microvascular Flow and Viscoelasticity Imaging in Monitoring Renal Allograft Function.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

Same journal

Deep Learning for Automated Infant Hip Ultrasound: Toward Robust Generalization across Disease Spectrum and Devices.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

Same journal

Ultrasound Assessment of the Fetal Pancreas in Normal and Abnormal Pregnancies: A Narrative Review.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

Same journal

Placental Assessment Using Microvascular Flow Imaging: Reference Ranges and Clinical Application.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

Same journal

Clinical Considerations of Shear Wave Elastography for Differentiating Benign from Malignant Breast Lesions.

Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 11, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

Reply

Lance Beier¹, Joshua Davis², Dasia Esener¹

¹Kaiser Permanente San Diego, San Diego, California, USA.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine

|August 25, 2020

Summary

No abstract available in PubMed .

More Related Videos

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration

Published on: February 23, 2019

A Proboscis Extension Response Protocol for Investigating Behavioral Plasticity in Insects: Application to Basic, Biomedical, and Agricultural Research

A Proboscis Extension Response Protocol for Investigating Behavioral Plasticity in Insects: Application to Basic, Biomedical, and Agricultural Research

Published on: September 8, 2014

Related Experiment Videos

Last Updated: Dec 11, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration

Published on: February 23, 2019

A Proboscis Extension Response Protocol for Investigating Behavioral Plasticity in Insects: Application to Basic, Biomedical, and Agricultural Research

A Proboscis Extension Response Protocol for Investigating Behavioral Plasticity in Insects: Application to Basic, Biomedical, and Agricultural Research

Published on: September 8, 2014