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Neutron activation is the only common way that a stable material can be induced into becoming intrinsically radioactive. Activation is inherently different than contamination. Neutrons are only free in quantity in the microseconds of a nuclear weapon's explosion, in an active nuclear reactor, or in a spallation neutron source.
Activated carbon. Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that greatly increase the surface area [1] [2] available for adsorption or chemical reactions [3] that can be thought of as a microscopic "sponge" structure (adsorption ...
The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet.Created in the first group of Internet domains at the beginning of 1985, its name is derived from the word commercial, [1] indicating its original intended purpose for subdomains registered by commercial organizations.
The histone code is a hypothesis that the transcription ... Methylation of lysines H3K4 and H3K36 is correlated with transcriptional activation while demethylation of ...
The reaction can be visualized using a reaction coordinate diagram to show the activation energy and potential energy throughout the reaction. Activated complexes were first discussed in transition state theory (also called activated complex theory), which was first developed by Eyring , Evans , and Polanyi in 1935.
Sexual stimulation is anything that leads to sexual arousal or orgasm.This thing can be physical or of other senses, and is known as a stimulus.. Sexual stimulation is a broad term, usually understood to mean physical touching of the genitals or other body parts.
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells inappropriately and excessively release chemical mediators, resulting in a range of chronic symptoms, sometimes including anaphylaxis or near-anaphylaxis attacks.
The White House, official residence of the president of the United States, in July 2008. The president of the United States is the head of state and head of government of the United States, [1] indirectly elected to a four-year term via the Electoral College. [2]