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A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting in the establishment of a nonlinear chemical oscillator. The only common element in these oscillators is the inclusion of bromine and an acid. The reactions are important to theoretical chemistry in that they show that chemical reactions do not have to be dominated by equilibrium thermodynamic behavior. These reactions are far from equilibrium and remain so for a significant length of time and evolve chaotically. In this sense, they provide an interesting chemical model of nonequilibrium biological phenomena; as such, mathematical models and simulations of the BZ reactions themselves are of theoretical interest, showing phenomenon as noise-induced order.
Boris Pavlovich Belousov was a Soviet chemist and biophysicist who discovered the Belousov–Zhabotinsky reaction in the early 1950s. His work initiated the field of modern nonlinear chemical dynamics.
Bromic acid, also known as hydrogen bromate, is an oxoacid with the molecular formula HBrO3. It only exists in aqueous solution. It is a colorless solution that turns yellow at room temperature as it decomposes to bromine. Bromic acid and bromates are powerful oxidizing agents and are common ingredients in Belousov–Zhabotinsky reactions. Belousov-Zhabotinsky reactions are a classic example of non-equilibrium thermodynamics.
Sergey Nikolaevich Kurnakov or Sergei N. Kournakoff was a former tsarist cavalry officer who had immigrated to the U.S. and later became an ardent ideological Communist.
Belousov, feminine: Belousova is a Russian-Polish patronymic surname formed from the nickname Belous derived from Belye Usy, "White Moustache".
Yevgeny Vladimirovich Belousov was a Soviet luger who competed in the mid to late 1980s. Competing in two Winter Olympics, he won the silver medal in the men's doubles event at Sarajevo in 1984.
Vladimir Vladimirovich Belousov was an Earth scientist in the Soviet Union, and a prominent advocate of alternatives to the theories of plate tectonics and seafloor spreading during the period of the 20th century in which debate on these subjects was most intense.
Pterostichus is a very large genus of ground beetles with a Holarctic distribution in the subfamily Harpalinae. It has over 1,200 species. The beetles are predatory, but sometimes feed on strawberries. They can be found under rocks and prefer slightly moist, sandy soil although preferences differ between species.
Trechus is a genus of ground beetle native to the Palearctic and the Near East. There are more than 1,000 described species in Trechus.
Piotr Petrovich Belousov was a Ukrainian and Russian graphic artist, painter, art teacher, professor of the Ilya Repin Leningrad Institute of Painting, Sculpture and Architecture, People's Artist of the USSR, corresponding member of the Academy of Arts of the USSR, who lived and worked in Leningrad. He was regarded as one of the brightest representatives of the Leningrad school of painting, being most famous for his portraits and historical paintings.
The Kurnakov test, also known as Kurnakov's reaction, is a chemical test that distinguishes pairs of cis- and trans-isomers of [PtA2X2] (A = NH3, X = halogen or pseudohalide). Upon treatment with thiourea, the trans-dihalides give less soluble white products, whereas the cis-dihalides give more soluble yellow products. The test is still used to assay samples of the drug cisplatin, but it is mainly of pedagogical interest, as it illustrates the trans effect.
Nikolai Semyonovich Kurnakov was a Russian chemist, who is internationally recognized as the originator of physicochemical analysis. He also was one of the principal founders of the platinum industry in the Soviet Union. A chemical reaction that he pioneered, known as the Kurnakov test, is still used to differentiate cis from trans isomers of divalent platinum and is his best-known contribution to coordination chemistry.
Kurnakov or Kurnakova is a Russian surname. Notable people with the surname include:
Lindrothius is a genus of beetles in the family Carabidae, containing the following species:
Deltomerus is a genus of ground beetles in the family Carabidae. There are more than 70 described species in Deltomerus.
Parapenetretus is a genus of ground beetles in the family Carabidae. There are at least 20 described species in Parapenetretus, found mainly in China.
Jeannelius is a genus of beetles in the family Carabidae, containing the following species:
Andrey Removich Belousov is a Russian economist and politician, serving as First Deputy Prime Minister since 21 January 2020. Previously, he was an Assistant to the President of Russia and Minister of Economic Development.
Trechini is a large tribe of ground beetles in the family Carabidae. There are more than 270 genera and over 2,400 described species in Trechini, found throughout the world.
Vadim Belousov is a Russian political figure and a deputy of the 6th, 7th, and 8th State Dumas.
References
- ↑ "Meganophthalmus Kurnakov, 1959". Catalogue of Life. Retrieved 2023-04-09.
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