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The coordinate-independent definition of the square of the line element ds in an n-dimensional Riemannian or Pseudo Riemannian manifold (in physics usually a Lorentzian manifold) is the "square of the length" of an infinitesimal displacement [2] (in pseudo Riemannian manifolds possibly negative) whose square root should be used for computing curve length: = = (,) where g is the metric tensor ...
LINE elements propagate by a so-called target primed reverse transcription mechanism (TPRT), which was first described for the R2 element from the silkworm Bombyx mori. ORF2 (and ORF1 when present) proteins primarily associate in cis with their encoding mRNA , forming a ribonucleoprotein (RNP) complex, likely composed of two ORF2s and an ...
A two-line element set (TLE, or more rarely 2LE) or three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting object for a given point in time, the epoch. Using a suitable prediction formula, the state (position and velocity) at any point in the past or future can be estimated to some accuracy.
This line element describes the Kerr–Newman metric. Here, is to be interpreted as the mass of the black hole, as seen by an observer at infinity, is interpreted as the angular momentum, and the electric charge. These are all meant to be constant parameters, held fixed.
LINE1 (an abbreviation of Long interspersed nuclear element-1, also known as L1 and LINE-1) is a family of related class I transposable elements in the DNA of many groups of eukaryotes, including animals and plants, classified with the long interspersed nuclear elements (LINEs). [1]
The quantity ds in is called the line element, while ds 2 is called the first fundamental form of M. Intuitively, it represents the principal part of the square of the displacement undergone by r → (u, v) when u is increased by du units, and v is increased by dv units. Using matrix notation, the first fundamental form becomes
Short interspersed nuclear elements (SINEs) are non-autonomous, non-coding transposable elements (TEs) that are about 100 to 700 base pairs in length. [1] They are a class of retrotransposons, DNA elements that amplify themselves throughout eukaryotic genomes, often through RNA intermediates. SINEs compose about 13% of the mammalian genome. [2]
Color is an element consisting of hues, of which there are three properties: hue, chroma or intensity, and value. [3] Color is present when light strikes an object and is reflected back into the eye, a reaction to a hue arising in the optic nerve. [6] The first of the properties is hue, which is the distinguishable color, like red, blue or ...