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

Infectious Risks Associated with Biologic Therapies in Autoimmune, Rheumatologic and Dermatologic Diseases: A Narrative Review.

Microorganisms·2026

Same author

Multimodal engagement estimation in paediatric robot-assisted gait training: integrating physiological sensing and biomechanical interaction.

Journal of neuroengineering and rehabilitation·2026

Same author

Assessment of Geographic Atrophy Using a Novel Hyperspectral Gradient Imaging Approach.

Ophthalmic surgery, lasers & imaging retina·2026

Same author

Spontaneous RPE Tear Associated with Non-neovascular Fibrosis Contraction in Extensive Macular Atrophy with Pseudodrusen-like Appearance (EMAP).

Retina (Philadelphia, Pa.)·2026

Same author

Influence of Anti-VEGF Injections on Longitudinal Changes in Vascular Metrics Measured by OCTA in Age Related Macular Degeneration: A Retrospective Real-World Study.

Clinical ophthalmology (Auckland, N.Z.)·2026

Same author

Real-Time High-Resolution OCT for Imaging Retinal and Choroidal Blood Flow.

Investigative ophthalmology & visual science·2026

Same journal

Metastasis of Nasopharyngeal Squamous Cell Carcinoma to the Angle.

Ophthalmology·2026

Same journal

Endocrine Mucin-Producing Sweat Gland Carcinoma of Eyelid.

Ophthalmology·2026

Same journal

Multimodal Imaging of Optic Nerve Invasion in Unilateral Retinoblastoma.

Ophthalmology·2026

Same journal

Avacincaptad Pegol Slows Progressive Ellipsoid Zone Degradation/Loss in Eyes With Geographic Atrophy.

Ophthalmology·2026

Same journal

Access to Intravitreal Anti-VEGF Drugs in Persons with Medicare Advantage Compared with Medicare Fee-For-Service.

Ophthalmology·2026

Same journal

Re: Dones et al.: Emergency department use of ocular point-of-care ultrasound and its utility in diagnosis at a tertiary academic medical center (Ophthalmology. 2026;133:720-727).

Ophthalmology·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jul 5, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

Reply

Francesco Romano¹, Chiara Zaffalon², Giovanni Staurenghi³

¹Harvard Retinal Imaging Lab, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts; Retina Service, Department of Ophthalmology, Massachusetts Eye and Ear, Boston, Massachusetts; Eye Clinic, Department of Biomedical and Clinical Sciences, Ospedale Luigi Sacco, University of Milan, Milan, Italy.

|January 11, 2024

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

Recording Behavioral Responses to Reflection in Crayfish

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010

Related Experiment Videos

Last Updated: Jul 5, 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

Recording Behavioral Responses to Reflection in Crayfish

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010