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

Resuscitation of neonatal critical care: a call for identity and course correction.

Journal of perinatology : official journal of the California Perinatal Association·2026

Same author

Farewell to PGY-6? Addressing the realities of pediatric fellowship training.

Journal of perinatology : official journal of the California Perinatal Association·2026

Same author

Consensus Recommendations for Sustainable and Equitable Neonatology Staffing: A Delphi Approach.

Pediatrics·2025

Same author

Is it time for a separate residency and department in "Neonatal Critical Care Medicine"?

Journal of perinatology : official journal of the California Perinatal Association·2025

Same author

Targeted Therapies for Neonatal Pulmonary Hypertension: Beyond Nitric Oxide.

Clinics in perinatology·2024

Same author

Academic Health Centers and Humanitarian Crises: One Health System's Response to Unaccompanied Children at the Border.

Academic medicine : journal of the Association of American Medical Colleges·2022

Same journal

Standardized Mean Differences Reveal Substantial Selection Bias in Post-Reduction Management of Intussusception.

The Journal of pediatrics·2026

Same journal

Parenteral Lipid Dose and Bilirubin Neurotoxicity in Extremely Preterm Infants: A Factorial Randomized Trial.

The Journal of pediatrics·2026

Same journal

Refining Oxygen-Carrying Capacity Metrics in Assessing Mortality Risk from Pneumonia in Children.

The Journal of pediatrics·2026

Same journal

Time-to-Transfer and Hospitalization Duration for Severe Congenital Heart Defects: Implications for Perinatal Regionalization.

The Journal of pediatrics·2026

Same journal

Multimodal neuromonitoring in neonatal hypoxic-ischemic encephalopathy and the association with neurodevelopmental outcomes: A Multicenter Study.

The Journal of pediatrics·2026

Same journal

KP.2-Adapted BNT162b2 COVID-19 Vaccine Uptake and Effectiveness in Children.

The Journal of pediatrics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Sep 26, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

Reply

Robin H Steinhorn¹

¹Rady Children's Hospital and University of California San Diego, San Diego, CA.

The Journal of Pediatrics

|April 21, 2022

Summary

No abstract available in PubMed .

More Related Videos

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

A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities

A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities

Published on: October 3, 2008

Related Experiment Videos

Last Updated: Sep 26, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

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

A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities

A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities

Published on: October 3, 2008