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Trioctylphosphine oxide

Trioctylphosphine oxide is an organophosphorus compound with the formula OP 3. Frequently referred to as TOPO, this compound is used as an extraction or stabilizing agent. It is an air-stable white solid at room temperature.

Triphenylphosphine oxide

Triphenylphosphine oxide is the organophosphorus compound with the formula OP 3, also written as Ph 3 PO or PPh 3 O. This colourless crystalline compound is a common but potentially useful waste product in reactions involving triphenylphosphine. ...

Triphenylphosphine sulfide

Triphenylphosphine sulfide is the organophosphorus compound with the formula 3 PS, usually written Ph 3 PS. It is a colourless solid, which is soluble in a variety of organic solvents. Structurally, the molecule resembles the corresponding oxide, ...

Nucleoside phosphoramidite

Nucleoside phosphoramidites are derivatives of natural or synthetic nucleosides. They are used to synthesize oligonucleotides, relatively short fragments of nucleic acid and their analogs. Nucleoside phosphoramidites were first introduced in 1981 ...

Montrealone

The montrealone parent compound has been studied theoretically, and is unlikely to exist as a stable species. Analogs bearing multiple substituents display stability suitable for synthesis, isolation, and characterization. Substituted montrealone ...

Acetaldoxime

Acetaldoxime is the chemical compound with formula C 2 H 5 NO. It is one of the simplest oxime-containing compounds, and has a wide variety of uses in chemical synthesis.

Formaldoxime

Formaldoxime is the organic compound with the formula H 2 C=NOH. It is the oxime of formaldehyde. A colorless liquid, the pure compound tends to polymerize into a trimer. Aqueous solutions are stable as is the hydrochloride. It is a reagent in or ...

Acetone oxime

Acetone oxime is the organic compound with the formula 2 CNOH. It is the simplest example of a ketoxime. It is a white crystalline solid that is soluble in water, ethanol, ether, chloroform, and ligroin. It is used as a reagent in organic synthes ...

Cyclohexanone oxime

Cyclohexanone oxime is an organic compound containing the functional group oxime. This colorless solid is an important intermediate in the production of nylon 6, a widely used polymer.

Chloroethyl chloroformate

Chloroethyl chloroformates are a pair of related chemical compounds. They can be used to form protecting groups and as N-dealkylating agents. They are listed as extremely hazardous substances.

Etamsylate

Etamsylate is a antihemorrhagic agent which is believed to work by increasing resistance in the endothelium of capillaries and promoting platelet adhesion. It also inhibits biosynthesis and action of those prostaglandins which cause platelet disa ...

Sulfanilic acid

Sulfanilic acid is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point.

Naphthalene-1-sulfonic acid

Naphthalene-1-sulfonic acid is an organic compound with the formula C 10 H 7 SO 3 H. A colorless, water-soluble solid, it is often available as the dihydrate C 10 H 7 SO 3 H. 2H 2 O. It is one of two monosulfonic acids of naphthalene, the other b ...

Naphthalene-2-sulfonic acid

Naphthalene-2-sulfonic acid is an organic compound with the formula C 10 H 7 SO 3 H. A colorless, water-soluble solid, it is often available as the mono- and trihydrates C 10 H 7 SO 3 H. 2H 2 O. It is one of two monosulfonic acids of naphthalene, ...

Fatty acyl-CoA esters

Fatty acyl-CoA esters are fatty acid derivatives formed of one fatty acid, a 3-phospho-AMP linked to phosphorylated pantothenic acid and cysteamine. Long-chain acyl-CoA esters are substrates for a number of important enzymatic reactions and play ...

Succinyl-CoA

It is converted into succinate through the hydrolytic release of coenzyme A by succinyl-CoA synthetase succinate thiokinase. Another fate of succinyl-CoA is porphyrin synthesis, where succinyl-CoA and glycine are combined by ALA synthase to form ...

Alachua bully

Sideroxylon alachuense, known by the common names Alachua bully, silver bully and silvery buckthorn, is a plant species native to the US states of Georgia and Florida. It grows in forested areas on hummocks or near lime sinks or shell middens, at ...

Albanese variety

The Albanese variety is the abelian variety A {\displaystyle A} generated by a variety V {\displaystyle V} taking a given point of V {\displaystyle V} to the identity of A {\displaystyle A}. In other words, there is a morphism from the variety V ...

Coble hypersurface

In algebraic geometry, a Coble hypersurface is one of the hypersurfaces associated to the Jacobian variety of a curve of genus 2 or 3 by Arthur Coble. There are two similar but different types of Coble hypersurfaces. Similarly the Jacobian of a g ...

Equations defining abelian varieties

In mathematics, the concept of abelian variety is the higher-dimensional generalization of the elliptic curve. The equations defining abelian varieties are a topic of study because every abelian variety is a projective variety. In dimension d ≥ 2 ...

Fourier–Mukai transform

In algebraic geometry, a Fourier–Mukai transform Φ K is a functor between derived categories of coherent sheaves D → D for schemes X and Y, which is, in a sense, an integral transform along a kernel object K ∈ D. Most natural functors, including ...

Potential good reduction

Good reduction refers to the reduced variety having the same properties as the original, for example, an algebraic curve having the same genus, or a smooth variety remaining smooth. Potential good reduction refers to the situation over a sufficie ...

Seesaw theorem

In algebraic geometry, the seesaw theorem, or seesaw principle, says roughly that a limit of trivial line bundles over complete varieties is a trivial line bundle. It was introduced by Andre Weil in a course at the University of Chicago in 1954–1 ...

Tate module

In mathematics, a Tate module of an abelian group, named for John Tate, is a module constructed from an abelian group A. Often, this construction is made in the following situation: G is a commutative group scheme over a field K, K is the separab ...

Zarhin trick

In mathematics, the Zarhin trick is a method for eliminating the polarization of abelian varieties A by observing that the abelian variety A 4 × A 4 is principally polarized. The method was introduced by Zarhin in his proof of the Tate conjecture ...

Linear algebraic group

In mathematics, a linear algebraic group is a subgroup of the group of invertible n × n matrices that is defined by polynomial equations. An example is the orthogonal group, defined by the relation M T M = 1 where M T is the transpose of M. Many ...

Hyperspecial subgroup

In the theory of reductive groups over local fields, a hyperspecial subgroup of a reductive group G is a certain type of compact subgroup of G. In particular, let F be a nonarchimedean local field, O its ring of integers, k its residue field and ...

Mirabolic group

In mathematics, a mirabolic subgroup of the general linear group GL n, studied by Gelfand & Kazhdan, is a subgroup consisting of automorphisms fixing a given non-zero vector in k n. Its image in the projective general linear group is a parabolic ...

Quasi-split group

In mathematics, a quasi-split group over a field is a reductive group with a Borel subgroup defined over the field. Simply connected quasi-split groups over a field correspond to actions of the absolute Galois group on a Dynkin diagram.

No. 4 Group RAF

No. 4 Group was a Royal Air Force group, originally formed in the First World War, and reformed in the wake of the Second World War, mostly part of RAF Bomber Command, but ending its days in RAF Transport Command.

No. 17 Group RAF

No. 17 Group RAF was formed during April 1918 in No. 4 Area, it was transferred to North-Eastern Area on 8 May 1918 with Training being added to the name on 8 August 1918 and was disbanded on 18 October 1919.

No. 18 Group RAF

RAF Kinloss No. 206 Squadron RAF Squadron with 8 Nimrod MR.2 maritime patrol aircraft Commander Maritime Air Northern Sub-Area / Maritime Air Nore Sub-Area Channel MAIRNORLANT / MAIRNORECHAN based in Rosyth No. 201 Squadron RAF Squadron with 8 Ni ...

No. 207 Group RAF

No. 207 Group was a group of the Royal Air Force established on 15 December 1941 by downgrading the British RAF Command known as Air H.Q. East Africa to Group status. The group was commanded by Air Commodore William Sowrey until June 1942 when Ai ...

No. 224 Group RAF

No. 224 Group of the Royal Air Force was operational during the Cold War. 224 Group assets during January 1962: 209 Sqn, RAF Seletar, Scottish Aviation Pioneer CC.1 & Scottish Aviation Twin Pioneer CC.1 & CC.2 110 Sqn, RAF Butterworth, Bristol Sy ...

50th Network Operations Group

The 50th Network Operations Group is a United States Space Force unit of the 50th Space Wing at Schriever Air Force Base, Colorado. 50th NOG is the single focal point for operating and maintaining the.2 billion Air Force Satellite Control Network ...

55th Electronic Combat Group

The 55th Electronic Combat Group, Davis-Monthan Air Force Base, provides combat-ready EC-130H Compass Call aircraft, crews, maintenance and operational support to combatant commanders. The group is a geographically separated unit that falls under ...

57th Adversary Tactics Group

The 57th Adversary Tactics Group is the flying component of the 57th Wing, assigned to the United States Air Force Air Combat Command. The group is stationed at Nellis Air Force Base, Nevada.

91st Security Forces Group

The 91st Security Forces Group falls under operational command of the 91st Missile Wing, and provides command and control for four squadrons - the 91st Missile Security Forces Squadron, 791st Missile Security Forces Squadron, 891st Missile Securi ...

448th Supply Chain Management Group

The 448th Supply Chain Management Group is an inactive United States Air Force unit. Its last assignment was to the 448th Fighter-Bomber Wing, stationed at Hensley Field, Texas. It was inactivated on 16 November 1957. During World War II, its pre ...

960th Cyberspace Operations Group

The 960th Cyberspace Operations Group, at Lackland Air Force Base, Texas, is a United States Air Force group managing four squadrons relating to computer network operations. The group was established 1 March 2013 as a reserve unit of the United S ...

1st Weather Group

The 1st Weather Group is a group of the "United States Air Force. It oversees all six operational weather squadrons; the 15th OWS at Scott AFB, Ill.; the 17th OWS at Joint Base Pearl Harbor–Hickam, Hawaii; the 21st OWS at Kapaun Air Station, Germ ...

Encyclopedic dictionary

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Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

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