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

Intersection of Climate and Environmental Change and Priority Health Outcomes Across the Life Course: Working Group 1 Report from the "Agriculture and Diet: Value Added for Nutrition, Translation, and Adaptation in a Global Ecology" (ADVANTAGE) Project.

Advances in nutrition (Bethesda, Md.)·2026

Same author

Understanding the Biological Evidence and Emerging Research Gaps in Nutrition That Impact the Health of School-Aged Children-a Report from the "Biomarkers of Nutrition for Development: Knowledge Indicating Dietary Sufficiency (BOND-KIDS)" Project Working Group 1.

The Journal of nutrition·2026

Same author

Perspective: Current Scientific Evidence and Research Strategies in the Role of Almonds in Cardiometabolic Health.

Current developments in nutrition·2025

Same author

An expert panel on the adequacy of safety data and physiological roles of dietary bovine osteopontin in infancy.

Frontiers in nutrition·2024

Same author

Perspective: Supporting Maternal Efforts to Provide Optimal Infant Nutrition in the Post-Partum Setting.

Advances in nutrition (Bethesda, Md.)·2024

Same author

Breastfeeding as a Quality Measure: The Appropriate Measure Is Initiation.

The Journal of perinatal & neonatal nursing·2022

Same journal

Respiratory Syncytial Virus Immunization Disparities in Mothers and Infants at the Birth Hospitalization: A Cross-Sectional Study.

The Journal of pediatrics·2026

Same journal

Blood-Based Biomarkers Predict Cerebral Palsy and Cognitive Delay in Hypoxic-Ischemic Encephalopathy: A Secondary Analysis of the HEAL Randomized Controlled Trial.

The Journal of pediatrics·2026

Same journal

Does Mild Head Injury in Childhood Affect Later School Performance? A Sibling Comparison Cohort Study.

The Journal of pediatrics·2026

Same journal

Risk Factors for Mortality and Age at Discharge in Preterm Infants with Congenital Heart Disease.

The Journal of pediatrics·2026

Same journal

To Cool or Not to Cool in Low- and Middle-Income Countries:? A Call for Resources, Training and Shared Knowledge.

The Journal of pediatrics·2026

Same journal

Responsible Research Practices in Pediatrics: How Reporting Guidelines Can Be Used to Improve Trial Design and Conduct.

The Journal of pediatrics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 8, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

Reply

Joel L Bass¹, Tina Gartley¹, Ronald Kleinman²

¹Department of Pediatrics, Newton-Wellesley Hospital, Newton, Massachusetts.

The Journal of Pediatrics

|September 17, 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 8, 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