42,772 articles
Lypressin
Lypressin, also known as lysine vasopressin or [Lys8]-vasopressin, is a cyclic nonapeptide hormone, the natural antidiuretic hormone of pigs, used as an antidiuretic and vasoconstrictor.
Lyra
Lyra is a small northern constellation representing the lyre, dominated by Vega, the fifth-brightest star in the night sky, best seen from June through October.
Lysimeter
A lysimeter is a device that isolates a column of soil, with or without vegetation, to measure percolation, leaching, and evapotranspiration; weighing types are the reference method for crop water use.
Lysine
Lysine (Lys or K) is an essential amino acid the body cannot make and must obtain from food; it is the limiting amino acid in cereal grains.
Lysol
Lysol, also known as Lizol, is a Reckitt brand of disinfectant sprays, wipes, and cleaners, descended from a water-soluble coal-tar disinfectant invented in Hamburg in 1889.
Lysophosphatidylcholines
Lysophosphatidylcholines, also called lysolecithins, are lysophospholipids formed from phosphatidylcholine that act as signaling lipids, disease markers, and carriers of omega-3 fatty acids into the brain.
m-Cresol
m-Cresol, also called 3-methylphenol, is a cresol isomer, a colorless liquid with a sweet tarry odor used mainly as an intermediate for synthetic vitamin E.
M-estimation
M-estimation is a class of statistical estimators defined by minimizing a sum of an objective function over the data, generalizing maximum likelihood and least squares to estimate parameters robustly despite outliers.
M-estimator
An M-estimator is a statistical estimator defined as the minimizer of a sum of an objective function over the data, generalizing maximum likelihood and least squares.
M-matrix
An M-matrix is a real square matrix with nonpositive off-diagonal entries and nonnegative principal minors, named for Minkowski and used in numerical analysis, economics, and probability.
M-Phenylenediamine
M-Phenylenediamine, also called benzene-1,3-diamine, is an aromatic diamine in which a benzene ring carries amino groups at positions 1 and 3, best known as the monomer of Nomex.
M-theory
M-theory is a proposed eleven-dimensional quantum theory of gravity underlying all five superstring theories, proposed by Edward Witten in a 1995 paper. Its fundamental objects are membranes and five-branes.
M-type asteroid
M-type asteroids, also called M-class asteroids, are a class of asteroid with moderate albedo and featureless spectra, interpreted as metallic nickel-iron bodies; the largest member is 16 Psyche.
m-Xylene
m-Xylene (1,3-dimethylbenzene, also called meta-xylene) is one of the three isomers of xylene, a colorless flammable liquid oxidized industrially to isophthalic acid for polyester resins.
M–sigma relation
The M–sigma relation, also written M–σ, is an empirical link between a galaxy's central supermassive black hole mass and its stellar velocity dispersion, reported independently in 2000.
M. A. Wazed Miah (এম এ ওয়াজেদ মিয়া)
M. A. Wazed Miah (এম এ ওয়াজেদ মিয়া) was a Bangladeshi nuclear physicist who chaired the Bangladesh Atomic Energy Commission and was married to Prime Minister Sheikh Hasina.
M. Brian Maple
M. Brian Maple, full name Merrill Brian Maple, is an American experimental condensed matter physicist at UC San Diego known for research on superconductivity and magnetism.
M. Cristina Marchetti
M. Cristina Marchetti is an Italian-born American theoretical physicist, a founder of the field of active matter, and a Distinguished Professor of Physics at UC Santa Barbara since 2018.
M. D. Donsker
M. D. Donsker, also known as Monroe D. Donsker, was an American mathematician at NYU's Courant Institute known for the 1951 invariance principle and work with Varadhan.
M. G. Finn
M. G. Finn is an American chemist who co-authored the 2001 paper introducing click chemistry, worked out the copper-catalyzed reaction's mechanism, and pioneered virus particles as chemical platforms.
M. Gordon Wolman
M. Gordon Wolman, known as "Reds," was an American fluvial geomorphologist who helped found the quantitative study of rivers and taught at Johns Hopkins for over 50 years.
M. Grae Worster
M. Grae Worster, also published as M. G. Worster, is a British fluid dynamicist who spent his career at Cambridge studying how sea ice and alloys solidify.
M. J. Seaton
M. J. Seaton, full name Michael John Seaton (1923–2007), was a British atomic physicist and astronomer who spent his career at University College London and is called the "Father of Atomic Astrophysics".
M. Kevin Brown
M. Kevin Brown is an American organic chemist, the James F. Jackson Professor of Chemistry at Indiana University Bloomington since 2011, known for ladderane isosteres and boron-enabled photochemical reactions.
M. King Hubbert
M. King Hubbert (1903–1989) was an American geologist best known for the Hubbert curve and his correct 1956 prediction that US oil production would peak around 1970.
M. Nafi Toksöz
M. Nafi Toksöz is a Turkish-born geophysicist and MIT professor emeritus known for earthquake seismology, lunar seismology from the Apollo program, and founding MIT's Earth Resources Laboratory.
M. R. van den Broeke
Michiel R. van den Broeke is a Dutch polar meteorologist and professor at Utrecht University known for quantifying Greenland's ice sheet mass loss and leading the RACMO model.
M. S. Bartlett
M. S. Bartlett, full name Maurice Stevenson Bartlett, was a British statistician known for the Bartlett test, the Bartlett adjustment, and his 1955 book on stochastic processes.
M. S. Narasimhan
M. S. Narasimhan, born Mudumbai Seshachalu Narasimhan, was an Indian mathematician whose 1965 theorem with C. S. Seshadri linked stable vector bundles to unitary representations.
M. Stanley Livingston
M. Stanley Livingston (Milton Stanley Livingston, 1905–1986) was an American accelerator physicist who co-invented the cyclotron with Ernest Lawrence and helped demonstrate strong focusing in 1952.