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

Performance of Google NotebookLM for AI-assisted data extraction and consensus statement generation in a heterogenous systematic review on inflammatory bowel disease, obesity, and cardiometabolic comorbidities: A Methodological Report.

medRxiv : the preprint server for health sciences·2026

Same author

Novel mouse models for perianal fistulizing Crohn's disease reveal therapeutic value of interferon-γ antagonists.

bioRxiv : the preprint server for biology·2026

Same author

Impact of Crohn's perianal fistulas on healthcare resource utilization: a US chart review study.

Journal of medical economics·2026

Same author

Fasting disrupts the InsP₆-HDAC3 axis to drive ER stress-mediated clearance of DNA-damaged cells and enforce tissue quality control.

bioRxiv : the preprint server for biology·2026

Same author

The Efficacy and Safety of Etrasimod in Mildly to Moderately Active Ulcerative Colitis: Results From the Phase II GLADIATOR Trial.

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association·2026

Same author

Update on Novel Biologic Therapies for Crohn Disease and the Impact of Imaging on Clinical Decision Making.

Radiographics : a review publication of the Radiological Society of North America, Inc·2026

Same journal

How important is fiber in the Crohn's disease story?

Gastroenterology·2026

Same journal

Reply to "Critical Appraisal of the Integrin αV-YAP-CTGF Axis in Congestive Hepatopathy".

Gastroenterology·2026

Same journal

Critical Appraisal of the Integrin αV-YAP-CTGF Axis in Congestive Hepatopathy.

Gastroenterology·2026

Same journal

A High-Risk Impaction: To Scope or to Stent First?

Gastroenterology·2026

Same journal

Epithelial FOXP3 orchestrates O-glycosylated IL-6 secretion to drive pancreatic fibrocarcinogenesis.

Gastroenterology·2026

Same journal

Reply to "Methodological Considerations on Neonatal Metabolomics and Future Inflammatory Bowel Disease".

Gastroenterology·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jul 11, 2025

Proboscis Extension Response PER Assay in Drosophila

Proboscis Extension Response PER Assay in Drosophila

Published on: April 29, 2007

Reply

Andres J Yarur¹, Parakkal Deepak²

¹IBD Institute, Division of Gastroenterology and Hepatology, Cedars Sinai Medical Center, Los Angeles, California.

Gastroenterology

|November 12, 2023

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 11, 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