Trimer (other)

	Trimer (other) Trimer may refer to: * Trimer (chemistry), a reaction product composed of three identical molecules * Protein trimer, a compound of three macromolecules non-covalently bound * Efimov trimer, a weakly bound quantum mechanical state of three identical particles * Trimer, Ille-et-Vilaine, a commune in France See also * Trimery (botany), having three parts in a distinct whorl of a plant structure * ''Trimerus'', Latin name of the Tremiti Islands, Italy * tri, a prefix * -mer, an affix * Trimmer (other) Trimmer may refer to: * Trimmer (construction), beam used in construction * Trimmer (electronics), small electrical component * Trimmer (gardening), gardening power tool * Trimmer (surname) * Trimmer, California, community in Fresno County * Lam ... {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Trimer (chemistry) In chemistry, a trimer (; ) is a molecule or polyatomic anion formed by combination or association of three molecules or ions of the same substance. In technical jargon, a trimer is a kind of oligomer derived from three identical precursors often in competition with polymerization. Examples Alkyne trimerisation In 1866, Marcellin Berthelot reported the first example of cyclotrimerization, the conversion of acetylene to benzene. This process was commercialized: : Nitrile trimerization Symmetrical 1,3,5-triazines are prepared by trimerization of certain nitriles such as cyanogen chloride or cyanimide. Cyanogen chloride and cyanogen bromide each trimerize at elevated temperatures over a carbon catalyst. The chloride gives cyanuric chloride: : The bromide has an extended shelflife when refrigerated. Like the chloride, it undergoes ab exothermic trimerisation to form cyanuric bromide. This reaction is catalyzed by traces of bromine, metal salts, acids and bases. For this reason ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Protein Trimer In biochemistry, a protein trimer is a macromolecular complex formed by three, usually non-covalently bound, macromolecules like proteins or nucleic acids. A homotrimer would be formed by three identical molecules. A heterotrimer would be formed by three different macromolecules. Type II Collagen is an example of homotrimeric protein. Porins usually arrange themselves in membranes as trimers. Bacteriophage T4 tail fiber Multiple copies of a polypeptide encoded by a gene often can form an aggregate referred to as a multimer. When a multimer is formed from polypeptides produced by two different mutant alleles of a particular gene, the mixed multimer may exhibit greater functional activity than the unmixed multimers formed by each of the mutants alone. When a mixed multimer displays increased functionality relative to the unmixed multimers, the phenomenon is referred to as intragenic complementation. The distal portion of each of the bacteriophage T4 tail fibers is encoded by ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Efimov Trimer The Efimov effect is an effect in the quantum mechanics of few-body systems predicted by the Russian theoretical physicist V. N. Efimov in 1970. Efimov’s effect is where three identical bosons interact, with the prediction of an infinite series of excited three-body energy levels when a two-body state is exactly at the dissociation threshold. One corollary is that there exist bound states (called Efimov states) of three bosons even if the two-particle attraction is too weak to allow two bosons to form a pair. A (three-particle) Efimov state, where the (two-body) sub-systems are unbound, is often depicted symbolically by the Borromean rings. This means that if one of the particles is removed, the remaining two fall apart. In this case, the Efimov state is also called a Borromean state. Theory Efimov predicted that, as the pair interactions among three identical bosons approach resonance—that is, as the binding energy of some two-body bound state approaches zero or the scat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Trimer, Ille-et-Vilaine Trimer () is a commune in the Ille-et-Vilaine department of Brittany in northwestern France. Population See also Communes of the Ille-et-Vilaine department The following is a list of the 333 communes of the Ille-et-Vilaine department of France. The communes cooperate in the following intercommunalities (as of 2020):Mayors of Ille-et-Vilaine Association Communes of Ille-et-Vilaine {{IlleVilaine-geo-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Merosity Merosity (from the greek "méros," which means "having parts") refers to the number of component parts in a distinct whorl of a plant structure. The term is most commonly used in the context of a flower where it refers to the number of sepals in a whorl of the calyx, the number of petals in a whorl of the corolla, the number of stamens in a whorl of the androecium, or the number of carpels in a whorl of the gynoecium. The term may also be used to refer to the number of leaves in a leaf whorl. The adjective ''n''-merous refers to a whorl of ''n'' parts, where ''n'' is any integer greater than one. In nature, five or three parts per whorl have the highest frequency of occurrence, but four or two parts per whorl are not uncommon. Be aware that two consecutive whorls of dimerous petals are often mistaken for tetramerous petals. If all of the whorls in a given floral arrangement have the same merosity, the flower is said to be isomerous, otherwise the flower is anisomerous. For exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tremiti Islands The Isole Tremiti, also called "Isole Diomedee" (Diomedes' Islands, from Greek ''Diomèdee'', Διομήδεες) are an archipelago in the Adriatic Sea, north of the Gargano Peninsula. They constitute a ''"comune"'' of Italy's Province of Foggia and form part of the Gargano national park. The archipelago is composed of 5 islands: San Domino, San Nicola, Capraia, Cretaccio and Pianosa. The islands were used for the internment of political prisoners during Benito Mussolini's Fascist regime. But it was also the prison of Julia the Younger, the granddaughter of Augustus and, in 780, the prison of Paul the Deacon at the behest of Charlemagne. The islands are now an important tourist attraction because of the clear waters surrounding them. Up to 100,000 visitors come to the islands in the summer season. Ferry services from the mainland operate from Termoli, Vieste, Rodi Garganico and Capoiale, while Alidaunia offers flights from San Domino Heliport to Foggia and Vieste. Toponym Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Numerical Prefix Numeral or number prefixes are prefixes derived from Numeral (linguistics), numerals or occasionally other numbers. In English and many other languages, they are used to coin numerous series of words. For example: * unicycle, bicycle, tricycle (1-cycle, 2-cycle, 3-cycle) * dyad, triad (2 parts, 3 parts) * biped, quadruped (2 legs, 4 legs) * September, October, November, December (month Julius Caesar, 7, month Augustus, 8, month Septimius Severus, 9, month Octavia E. Butler, 10) * decimal, hexadecimal (base-10, base-16) * septuagenarian, octogenarian (70-79 years old, 80-89 years old) * centipede, millipede (around 100 legs, around 1000 legs) In many European languages there are two principal systems, taken from Latin and Greek language, Greek, each with several subsystems; in addition, Sanskrit occupies a marginal position. There is also an international set of metric prefixes, which are used in the metric system and which for the most part are either distorted from the forms belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	-mer {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]