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This is a list of Wikipedia articles about curves used in different fields: mathematics (including geometry, statistics, and applied mathematics), ...
Homochirality is an obvious characteristic of life on Earth, yet extraterrestrial samples contain largely racemic compounds. [7] It is not known whether homochirality existed before life, whether the building blocks of life must have this particular chirality, or whether life must be homochiral at all. [8] [9] What do all the unknown proteins do?
The standard logistic function is the logistic function with parameters =, =, =, which yields = + = + = / / + /.In practice, due to the nature of the exponential function, it is often sufficient to compute the standard logistic function for over a small range of real numbers, such as a range contained in [−6, +6], as it quickly converges very close to its saturation values of 0 and 1.
Biology is the overall natural science that studies life, with the other life sciences as its sub-disciplines. Some life sciences focus on a specific type of organism. For example, zoology is the study of animals, while botany is the study of plants. Other life sciences focus on aspects common to all or many life forms, such as anatomy and ...
A simplified Jablonski diagram illustrating the change of energy levels.. The principle behind fluorescence is that the fluorescent moiety contains electrons which can absorb a photon and briefly enter an excited state before either dispersing the energy non-radiatively or emitting it as a photon, but with a lower energy, i.e., at a longer wavelength (wavelength and energy are inversely ...
For the example shown in the diagram, all neighboring stripes have the same area: A 1 = A 2 = A 3. This property is used in electrical engineering for the construction of variable capacitors. [2] the regions in between (white, blue, yellow) have all the same area, which is equal to the area of the drawn circle.
A functional response in ecology is the intake rate of a consumer as a function of food density (the amount of food available in a given ecotope).It is associated with the numerical response, which is the reproduction rate of a consumer as a function of food density.
F is the most stable with a half-life of 109.734 minutes. [51] [52] 18 F is a natural trace radioisotope produced by cosmic ray spallation of atmospheric argon as well as by reaction of protons with natural oxygen: 18 O + p → 18 F + n. [53] Other radioisotopes have half-lives less than 70 seconds; most decay in less than half a second. [54 ...