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

Feedback Loops

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.

Review and Preview

Review and Preview

In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...

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

Responses to Gravity and Touch

Responses to Gravity and Touch

Gravitropism: Plant Responses to Gravity

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:

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...

You might also read

Related Articles

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

Sort by

Same author

Survival Trends of People With Spina Bifida From 1950-2020.

JAMA pediatrics·2026

Same author

Establishing a clinician-prioritized pediatric urology clinical research agenda in the United States.

Journal of pediatric urology·2026

Same author

Microglia mediate sex-dependent memory deficits in pelvic pain.

American journal of physiology. Regulatory, integrative and comparative physiology·2026

Same author

Gut Microbiome-Driven Microglial Activation Links Dysbiosis to Pain in Interstitial Cystitis/Bladder Pain Syndrome.

Research square·2026

Same author

Epigenetic Regulation of Immune Dysfunction in Chronic Prostatitis/Chronic Pelvic Pain Syndrome.

The Prostate·2026

Same author

Reply by Authors.

Urology practice·2026

Search research articles

Related Experiment Videos

AUTHOR REPLY

Goutham Pattabiraman¹, Geoffrey Engel¹, Catherine V Osborn¹

¹Department of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL.

|August 14, 2023

Summary

No abstract available in PubMed .

Related Experiment Videos