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- DictionaryX fac·tor/ˈeksfaktər/
noun
- 1. a noteworthy special talent or quality: "there are plenty of luxury cars around, but the S-Type has that special X factor"
- 2. a variable in a given situation that could have the most significant impact on the outcome: "the young vote may turn out to be the X factor"
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4 days ago · The standard deviation σ of X is defined as which can be shown to equal. Using words, the standard deviation is the square root of the variance of X . The standard deviation of a probability distribution is the same as that of a random variable having that distribution. Not all random variables have a standard deviation.
5 days ago · Epigenetics. Epigenetic mechanisms. In biology, epigenetics is the study of heritable traits, or a stable change of cell function, that happen without changes to the DNA sequence. [1] The Greek prefix epi- ( ἐπι- "over, outside of, around") in epigenetics implies features that are "on top of" or "in addition to" the traditional (DNA ...
5 days ago · The X chromosome is one of the two sex chromosomes that are involved in sex determination. Humans and most other mammals have two sex chromosomes (X and Y) that in combination determine the sex of an individual. Females have two X chromosomes in their cells, while males have one X and one Y.
3 days ago · The symbol dx, called the differential of the variable x, indicates that the variable of integration is x. The function f(x) is called the integrand, the points a and b are called the limits (or bounds) of integration, and the integral is said to be over the interval [a, b], called the interval of integration. [18]
5 days ago · The slope factor is the cancer risk (proportion affected) per unit of dose. In the IRIS chemical files the slope factor is expressed on the basis of chemical weight [milligrams of substance per kilogram body weight per day (mg/kg/day)].
5 days ago · a civil or criminal law with retroactive effect; especially : a law that retroactively alters a defendant's rights especially by criminalizing… See the full definition
4 days ago · noun. : a mitogenic growth factor that is found especially in platelets, consists of two polypeptide chains linked by bonds containing two sulfur atoms each, stimulates cell proliferation (as in connective tissue, smooth muscle, and glia), and plays a role in wound healingabbreviation PDGF.
