| CRE | cumulative radiation effect; cyclic adenosine monophosphate-response element |
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| CREM | center for rural emergency medicine; cyclic adenosine monophosphate-response element modulator |
| 3DFEM | three-dimensional finite element method |
| DIMSE | DICOM message service element |
| DRES | dynamic random element stimuli |
| noble element | A metal that cannot be oxidised by heat alone, nor readily dissolved by acid; e.g., gold, platinum. Synonym: noble element. (05 Mar 2000) |
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| dyad symmetry element | Dyad symmetry element bound by serum response factor to control the expression of c fos. (18 Nov 1997) |
| Is element | Mobile nucleotide sequences that occur naturally in the genomes of bacterial populations. When inserted into bacterial DNA, they inactivate the gene concerned, when they are removed the gene regains its activity. Closely related to transposons and range in size from a few hundred to a few thousand bases, but are usually less than 1500 bases. (18 Nov 1997) |
| electronegative element | An element whose atoms have a tendency to accept electrons and form negative ions (e.g., oxygen, sulfur, chlorine, etc.). (05 Mar 2000) |
| electropositive element | <chemistry> An element whose atoms have a tendency to lose electrons and form positive ions (e.g., sodium). (05 Mar 2000) |
| trace element | Any chemical element that an organism needs very small quantities of tosurvive. (09 Oct 1997) |
| transitional element | <cell biology> Region at the boundary of the rough endoplasmic reticulum and the Golgi. Transport vesicles are responsible for the transfer of secretory proteins from this part of the rough endoplasmic reticulum to the Golgi system. (18 Nov 1997) |
| enhancer element | <molecular biology> A DNA sequence, present in the genomes of higher eukaryotes and of various animal viruses, which can increase the transcription of genes into messenger RNA. These control element frequently found 5' to the start site of a gene, when bound by a specific transcription factor, enhance the levels of expression of the gene, but are not sufficient alone to cause expression. Distinguished from a promoter, that is alone sufficient to cause expression of the gene when bound, in practice, the two terms merge. Enhancers usually can function in either orientation and at various distances from a promoter. Compare: promoter. (03 Jul 1999) |
| transposable element | <molecular biology> Small, mobile DNA sequences that can replicate and insert copies at random sites within chromosomes. They have nearly identical sequences at each end, oppositely oriented (inverted) repeats and code for the enzyme, transposase, that catalyses their insertion. Bacteria have two types of transposon, simple transposons that have only the genes needed for insertion and complex transposons that contain genes in addition to those needed for insertion. Eukaryotes contain two classes of mobile genetic elements, the first are like bacterial transposons in that DNA sequences move directly. The second class (retrotransposons) move by producing RNA that is transcribed, by reverse transcriptase, into DNA which is then inserted at a new site. (13 Nov 1997) |
| extrachromosomal element | Any heritable element not associated with the chromosome. It is usually a plasmid or the DNA of organelles such as mitochondria and chloroplasts. (18 Nov 1997) |
| elementary body |
1. old term for platelet. 2. an inclusion body. 3. the infectious extracellular form of Chlamydia, consisting of electron-dense nuclear material and a few ribosomes surrounded by a rigid trilaminar wall. Elementary bodies are taken up into cells where they reorganize into reticulate bodies (qv); following reproduction, chlamydiae are released from the cell as elementary bodies.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| elementary particle |
In particle physics, an elementary particle is a particle of which other, larger particles are composed. For example, atoms are made up of smaller particles known as electrons, protons, and neutrons. The proton and neutron, in turn, are composed of more elementary particles known as quarks. ...
출처: en.wikipedia.org/wiki/Elementary_particle
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| element |
A substance composed of atoms with a unique number of protons in each nucleus. There are 92 naturally occurring and 15 manmade elements.
출처: www.nsc.org/ehc/guidebks/wippglos.htm
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| elementary particle |
Indivisible unit from which all matter is made and forces are communicated. Currently known elementary matter particles are grouped into categories of quarks and leptons and their anti-matter counterparts. These particles interact through fundamental force carrier particles, which include the gluon, photon, and W and Z particles, and the theorized-but-undiscovered graviton.
출처: www.pbs.org/wgbh/nova/teachers/activities/3012_ele...
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| element |
A substance that cannot be decomposed into a simpler substance by a chemical reaction. A substance composed of only one kind of atom.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/e...
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| element | a straight line running the length of the cylinder |
|---|---|
| element | being or resembling a force of nature |
| element | being the ultimate or elemental constituents of anything |
| element | relating to or being an element |
| element | relating to severe atmospheric conditions |
| element | in an elementary manner |
| element | easy and not involved or complicated |
| element | of or being the essential or basic part |
| element | education in elementary subjects (reading and writing and arithmetic) provided to young students at a grade school |
| element | geometry based on Euclid's axioms: e.g., only one line can be drawn through a point parallel to another line |
| element | a particle that is less complex than an atom |
| element | a school for young children |