42,772 articles
Oligomycin
Oligomycin is a group of toxic macrolide antibiotics produced by Streptomyces that inhibits ATP synthase, and serves as a standard laboratory tool for measuring mitochondrial respiration.
Oligonucleotide synthesis
Oligonucleotide synthesis is the chemical construction of short, defined-sequence single-stranded nucleic acids, typically 10 to a few hundred nucleotides long, without a biological template, dominated by automated solid-phase phosphoramidite chemistry.
Oligosaccharide
An oligosaccharide is a carbohydrate made of 2 to about 10 monosaccharide units joined by glycosidic bonds, found in human milk, seeds, and cell-surface glycoproteins and glycolipids.
Oligotrophication
Oligotrophication, also called re-oligotrophication, is the decline of nutrient concentrations and productivity in an aquatic ecosystem, most often a deliberate result of cutting nitrogen and phosphorus inputs to a formerly eutrophic lake.
Olimpiada
Olimpiada (Олимпиада) is a gold mine in Krasnoyarsk region, Eastern Siberia, Russia, operated by PJSC Polyus and among the largest gold mines in the world.
Olin Chaddock Wilson
Olin Chaddock Wilson (1909–1994) was an American stellar spectroscopist at the Mount Wilson and Palomar observatories, known for the Wilson–Bappu effect and stellar activity cycles.
Oliver C. Mullins
Oliver C. Mullins is a petroleum geochemist, Schlumberger Fellow, and National Academy of Engineering member known for downhole fluid analysis, the Yen-Mullins model, and reservoir fluid geodynamics.
Oliver Dimon Kellogg
Oliver Dimon Kellogg (1878–1932) was an American mathematician who worked in potential theory and integral equations, wrote Foundations of Potential Theory (1929), and taught at Harvard.
Oliver E. Buckley Prize
The Oliver E. Buckley Prize, or Buckley Prize, is an annual American Physical Society award for contributions to condensed matter physics, established in 1952 by Bell Laboratories.
Oliver Fiehn
Oliver Fiehn is a German-trained analytical chemist, professor at the UC Davis Genome Center since 2004, known for GC-MS metabolomics, the FiehnLib spectral library, and spectral entropy methods.
Oliver Fringer
Oliver Fringer is a Stanford professor who develops numerical models of coastal ocean, river, lake, and estuary dynamics, and received a PECASE award in 2008.
Oliver Heaviside
Oliver Heaviside (1850–1925) was a self-educated English mathematical physicist who reduced Maxwell's theory to four vector equations and developed transmission line theory and operational calculus.
Oliver Labs
Oliver Labs is a geometer best known for constructing the Labs septic in 2004, a degree-7 surface with 99 ordinary double points, the most known for any septic.
Oliver Lodge
Sir Oliver Joseph Lodge (1851–1940) was a British physicist who pioneered radio tuning and wireless telegraphy, then became the first Principal of the University of Birmingham.
Oliver Penrose
Oliver Penrose is a British mathematical physicist known for the Penrose–Onsager criterion for Bose–Einstein condensation, brother of Roger Penrose, and a Royal Society Fellow elected in 1987.
Oliver Reiser
Oliver Reiser is a German organic chemist and professor of organic chemistry at the University of Regensburg since 1997, known for copper photoredox catalysis and C–H functionalization.
Oliver S. Wenger
Oliver S. Wenger (born 1974) is a Swiss inorganic chemist and professor at the University of Basel whose research group studies photoactive coordination complexes and photoredox catalysis.
Oliver Wolcott Gibbs
Oliver Wolcott Gibbs, known as Wolcott Gibbs, was an American analytical and inorganic chemist, Rumford Professor at Harvard from 1863 to 1887, remembered for introducing electrogravimetry.
Olivier Baudoin
Olivier Baudoin is a French chemist working in organic synthesis and organometallic catalysis, Full Professor at the University of Basel since 2015 and head of its chemistry department since 2021, known for palladium-catalyzed C(sp3)–H activation.
Olivine
Olivine, also known as crysolite, is a group of rock-forming silicate minerals ranging from forsterite to fayalite, usually olive green and dominant in Earth's upper mantle.
Olle Eriksson
Olle Eriksson is a Swedish condensed-matter physicist, professor of materials theory at Uppsala University since 2002, known for first-principles calculations of magnetism and atomistic spin dynamics, including the UppASD code.
Olli Ikkala
Olli Ikkala, born 1953, is a Finnish physicist known for work on self-assembling functional materials, who was Professor of Polymer Physics at Aalto University from 1999 to 2018 and received the Finnish Science Award in 2023.
Olli Lounasmaa
Olli Lounasmaa (1930–2002) was a Finnish physicist in low-temperature physics and biomagnetism who founded Helsinki University of Technology's Low Temperature Laboratory in 1965 and developed magnetoencephalography for brain research.
Olof Hanner
Olof Hanner (1922–2015) was a Swedish mathematician, professor at the University of Gothenburg from 1963 to 1989, known for the Hanner inequality and Hanner polytopes.
Olof Thorin
G. Olof Thorin (1912–2004) was a Swedish mathematician who spent his career as an insurance actuary, never at a university, and proved the Riesz–Thorin interpolation theorem, still standard teaching material.
Olokun Vallis
Olokun Vallis is a 150 km sinuous channel (vallis) on Venus at 81.5°N, 269.0°E, named by the IAU in 1997 for the Bini sea and river deity Olokun; one of 72 named Venusian valles.
Olympic Dam
Olympic Dam is a poly-metallic underground mine in far northern South Australia, 650 km northwest of Adelaide, producing copper, uranium, gold, and silver for owner BHP.
Olympicene
Olympicene is a polycyclic aromatic hydrocarbon, C₁₉H₁₂, whose five fused rings resemble the Olympic rings; it was first synthesized and imaged in 2012 by the University of Warwick and IBM Research – Zurich.
Olympus Corporation (オリンパス株式会社)
Olympus Corporation, founded in 1919 as Takachiho Seisakusho, is a Japanese medical technology company in Tokyo known for endoscopes; it sold its camera business in 2021.
Oman ophiolite
The Oman ophiolite, also called the Semail ophiolite, is the world's largest exposed slice of oceanic crust and mantle, covering about 20,000 km² in northern Oman and the UAE.