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The suffix -ase is used in biochemistry to form names of enzymes . The most common way to name enzymes is to add this suffix onto the end of the substrate , e.g. an enzyme that breaks down peroxides may be called peroxidase ; the enzyme that produces telomeres is called telomerase . Sometimes enzymes are named for the ... | https://en.wikipedia.org/wiki/-ase |
The suffix -bacter is used in microbiology for many genera and is intended to mean "bacteria".
Bacter is a Neo-Latin (i.e. Modern Latin) term coined from bacterium , which in turn derives from the Greek βακτήριον , meaning small staff (diminutive of βακτηρία ). Consequently, it formally means "rod".
It differs from th... | https://en.wikipedia.org/wiki/-bacter |
The suffix -ene is used in organic chemistry to form names of organic compounds where the -C=C- group has been attributed the highest priority according to the rules of organic nomenclature . [ 1 ] Sometimes a number between hyphens is inserted before it to say that the double bond is between that atom and the atom wit... | https://en.wikipedia.org/wiki/-ene |
-ine is a suffix used in chemistry to denote two kinds of substance . The first is a chemically basic and alkaloidal substance. It was proposed by Joseph Louis Gay-Lussac in an editorial accompanying a paper by Friedrich Sertürner describing the isolation of the alkaloid "morphium", which was subsequently renamed to "m... | https://en.wikipedia.org/wiki/-ine |
The suffix -monas is used in microbiology for many genera and is intended to mean "unicellular organism".
The suffix -monas found in many genera in microbiology is similar in usage to -bacter , -bacillus , -coccus or -spirillum . The genera with the suffix are not a monophyletic group and the suffix is chosen over -ba... | https://en.wikipedia.org/wiki/-monas |
The suffix -oate is the IUPAC nomenclature used in organic chemistry to form names of compounds formed with ester . They are of two types:
The suffix comes from " -oic acid ".
The most common examples of compounds named with the "oate" suffix are esters, like ethyl acetate , CH 3 COOCH 2 CH 3 .
This vocabulary -rela... | https://en.wikipedia.org/wiki/-oate |
In organic chemistry , a carboxylic acid is an organic acid that contains a carboxyl group ( −C(=O)−OH ) [ 1 ] attached to an R-group . The general formula of a carboxylic acid is often written as R−COOH or R−CO 2 H , sometimes as R−C(O)OH with R referring to an organyl group (e.g., alkyl , alkenyl , aryl ), or hydroge... | https://en.wikipedia.org/wiki/-oic_acid |
The suffix –ol is used in organic chemistry principally to form names of organic compounds containing the hydroxyl (–OH) group, mainly alcohols . The suffix was extracted from the word alcohol .
The suffix also appears in some trivial names with reference to oils (from Latin oleum , oil). Examples of this sense of the... | https://en.wikipedia.org/wiki/-ol |
The suffix -one is used in organic chemistry to form names of organic compounds containing the -C(=O)- group: see ketone . [ 1 ] Sometimes a number between hyphens is inserted before it to state which atom the =O atom is attached to. This suffix was extracted from the word acetone . The final "-e" disappears if it is f... | https://en.wikipedia.org/wiki/-one |
The suffix -ose ( / oʊ z , oʊ s / ) is used in organic chemistry to form the names of sugars . This Latin suffix means "full of", "abounding in", "given to", or "like". [ 1 ] Numerous systems exist to name specific sugars more descriptively. The suffix is also used more generally in English to form adjectives from noun... | https://en.wikipedia.org/wiki/-ose |
In chemical nomenclature , the IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended [ 1 ] [ 2 ] by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the Nomenclature of Organic Chemistry (informally called the Blue Book ). [ 3 ] Ideally,... | https://en.wikipedia.org/wiki/-oxo- |
-yllion (pronounced / aɪ lj ən / ) [ 1 ] is a proposal from Donald Knuth for the terminology and symbols of an alternate decimal superbase [ clarification needed ] system. In it, he adapts the familiar English terms for large numbers to provide a systematic set of names for much larger numbers . In addition to providin... | https://en.wikipedia.org/wiki/-yllion |
In chemistry , the suffix -yne is used to denote the presence of a triple bond ( ≡ ). [ 2 ]
The suffix follows IUPAC nomenclature , and is mainly used in organic chemistry . However, inorganic compounds featuring unsaturation in the form of triple bonds may be denoted by substitutive nomenclature with the same method... | https://en.wikipedia.org/wiki/-yne |
-zilla is an English slang suffix , a libfix back-formation derived from the English name of the Japanese movie monster Godzilla . [ 1 ] [ 2 ] It is popular for the names of software and websites . It is also found often in popular culture to imply some form of excess, denoting the monster-like qualities of Godzilla.
... | https://en.wikipedia.org/wiki/-zilla |
.design is a generic top-level domain name in the Domain Name System of the Internet . It was proposed in ICANN 's new generic top-level domain (gTLD) program , and became available to the general public on May 12, 2015. Top Level Design was the domain name registry for the string until April 2021, when it was transfer... | https://en.wikipedia.org/wiki/.design |
Keyhole Markup Language ( KML ) is an XML notation for expressing geographic annotation and visualization within two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth , which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc , which was acquired b... | https://en.wikipedia.org/wiki/.kmz |
A 0/1-polytope is a convex polytope generated by the convex hull of a subset of d coordinates value 0 or 1, {0,1} d . [ 1 ] The full domain is the unit hypercube with cut hyperplanes passing through these coordinates. [ 2 ] A d -polytope requires at least d + 1 vertices, and can't be all in the same hyperplanes.
n - s... | https://en.wikipedia.org/wiki/0/1-polytope |
In Internet culture , the 1% rule is a general rule of thumb pertaining to participation in an Internet community , stating that only 1% of the users of a website actively create new content, while the other 99% of the participants only lurk . Variants include the 1–9–90 rule (sometimes 90–9–1 principle or the 89:10:1 ... | ERROR: type should be string, got "https://en.wikipedia.org/wiki/1%_rule" |
1,1'-Azobis-1,2,3-triazole is a moderately explosive but comparatively stable chemical compound [ citation needed ] which contains a long continuous chain of nitrogen atoms, with an unbroken chain of eight nitrogen atoms cyclised into two 1,2,3-triazole rings. It is stable up to 194 °C. The compound exhibits cis – tran... | https://en.wikipedia.org/wiki/1,1'-Azobis-1,2,3-triazole |
1,1,1,2-Tetrafluoroethane (also known as norflurane ( INN ), R-134a, Klea 134a , Freon 134a , Forane 134a , Genetron 134a , Green Gas , Florasol 134a , Suva 134a , HFA-134a , or HFC-134a ) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but... | https://en.wikipedia.org/wiki/1,1,1,2-Tetrafluoroethane |
This page lists chemical and physical properties of 1,1,1,2-tetrafluoroethane . [ 1 ]
(For CFC-11, HGWP = 1)
(100 yr ITH. For CO 2 , GWP = 1)
* Acceptable Exposure Limit (AEL) is an airborne inhalation exposure limit established by DuPont that specifies time-weighted average concentrations to which nearly all worker... | https://en.wikipedia.org/wiki/1,1,1,2-Tetrafluoroethane_(data_page) |
1,1,1-Trichloro-2,2,2-trifluoroethane , also called Asymmetrical trichlorotrifluoroethane or CFC-113a , is a chlorofluorocarbon (CFC) with the formula CCl 3 CF 3 .
A team of researchers at the University of East Anglia analysed unpolluted air samples from Tasmania dating from the period 1978 to 2012. They concluded th... | https://en.wikipedia.org/wiki/1,1,1-Trichloro-2,2,2-trifluoroethane |
1,1,1-Trichloroethane , also known as methyl chloroform and chlorothene , is a chloroalkane with the chemical formula CH 3 CCl 3 . It is an isomer of 1,1,2-trichloroethane . A colourless and sweet-smelling liquid, it was once produced industrially in large quantities for use as a solvent . [ 5 ] It is regulated by the ... | https://en.wikipedia.org/wiki/1,1,1-Trichloroethane |
1,1,2,2-Tetrafluoroethane (also called R-134 or HFC-134 ) is a hydrofluorocarbon , a fluorinated alkane . It is an isomer of the more-used 1,1,1,2-tetrafluoroethane (R-134a). It is used as a foam expansion agent and heat transfer fluid. [ 3 ] | https://en.wikipedia.org/wiki/1,1,2,2-Tetrafluoroethane |
1,1,2-Trichloro-1,2,2-trifluoroethane , also called trichlorotrifluoroethane (often abbreviated as TCTFE ) or CFC-113 , is a chlorofluorocarbon . It has the formula Cl 2 FC−CClF 2 . This colorless, volatile liquid is a versatile solvent. [ 5 ]
CFC-113 can be prepared from hexachloroethane and hydrofluoric acid : [ 6 ]... | https://en.wikipedia.org/wiki/1,1,2-Trichloro-1,2,2-trifluoroethane |
Tetramethylguanidine is an organic compound with the formula HNC(N(CH 3 ) 2 ) 2 . This colourless liquid is a strong base , as judged by the high pK a of its' conjugate acid. [ 2 ]
It was originally prepared from tetramethyl thiourea via S - methylation and amination , but alternative methods start from cyanogen iodi... | https://en.wikipedia.org/wiki/1,1,3,3-Tetramethylguanidine |
1,1-Dichloro-1-fluoroethane is a haloalkane with the formula C 2 H 3 Cl 2 F . It is one of the three isomers of dichlorofluoroethane . It belongs to the hydrochlorofluorocarbon (HCFC) family of man-made compounds that contribute significantly to both ozone depletion and global warming when released into the environmen... | https://en.wikipedia.org/wiki/1,1-Dichloro-1-fluoroethane |
1,1-Difluoroethane , or DFE , is an organofluorine compound with the chemical formula C 2 H 4 F 2 . This colorless gas is used as a refrigerant , where it is often listed as R-152a (refrigerant-152a) or HFC-152a ( hydrofluorocarbon -152a). It is also used as a propellant for aerosol sprays and in gas duster products. A... | https://en.wikipedia.org/wiki/1,1-Difluoroethane |
1,10-Phenanthroline ( phen ) is a heterocyclic organic compound . It is a white solid that is soluble in organic solvents. The 1,10 refers to the location of the nitrogen atoms that replace CH's in the hydrocarbon called phenanthrene .
Abbreviated "phen", or sometimes "o-phen" for ortho-phenanthroline, it is used as a... | https://en.wikipedia.org/wiki/1,10-Phenanthroline |
1,2,3-Cyclohexatriene is an unstable chemical compound with the molecular formula C 6 H 6 . [ 1 ] It is an unusual isomer of benzene in which the three double bonds are cumulated .
This highly strained compound was first prepared in 1990, by reacting a cyclohexadiene derivative with cesium fluoride . [ 2 ] The product... | https://en.wikipedia.org/wiki/1,2,3-Cyclohexatriene |
1,2,4,5-Tetrachloro-3-nitrobenzene ( tecnazene ) is an organic compound with the formula HC 6 Cl 4 NO 2 . It is a colorless solid. A related isomer is 1,2,3,4-tetrachloro-5-nitrobenzene.
It is used as a standard for quantitative analysis by nuclear magnetic resonance . [ 4 ] [ 5 ]
1,2,4,5-Tetrachloro-3-nitrobenzene ... | https://en.wikipedia.org/wiki/1,2,4,5-Tetrachloro-3-nitrobenzene |
1,2,4-Butanetriol trinitrate ( BTTN ), also called butanetriol trinitrate , is an important military propellant . It is a colorless to brown explosive liquid. [ 1 ]
BTTN is used as a propellant in virtually all single-stage missiles used by the United States, including the Hellfire . [ 2 ] It is less volatile, less se... | https://en.wikipedia.org/wiki/1,2,4-Butanetriol_trinitrate |
1,2,4-Trioxane is one of the isomers of trioxane . It has the molecular formula C 3 H 6 O 3 and consists of a six membered ring with three carbon atoms and three oxygen atoms. The two adjacent oxygen atoms form a peroxide functional group and the other forms an ether functional group. It is like a cyclic acetal but wit... | https://en.wikipedia.org/wiki/1,2,4-Trioxane |
1,2-Dibromo-3-chloropropane ( dibromochloropropane ), better known as DBCP , is the organic compound with the formula BrCH(CH 2 Br)(CH 2 Cl). It is a dense colorless liquid although commercial samples often appear amber or even brown. It is the active ingredient in the nematicide Nemagon , also known as Fumazone .
It ... | https://en.wikipedia.org/wiki/1,2-Dibromo-3-chloropropane |
1,2-Dibromoethane , also known as ethylene dibromide ( EDB ), is an organobromine compound with the chemical formula C 2 H 4 Br 2 . Although trace amounts occur naturally in the ocean , where it is probably formed by algae and kelp , substantial amounts are produced industrially. It is a dense colorless liquid with a f... | https://en.wikipedia.org/wiki/1,2-Dibromoethane |
This page provides supplementary chemical data on 1,2-dichloroethane .
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. The (s) annotation indicates temperature is equilibrium of vapor over solid. Otherwise temperature is equilibrium of vapor over liquid.
See also: | https://en.wikipedia.org/wiki/1,2-Dichloroethane_(data_page) |
1,2-Dichlorotetrafluoroethane , or R-114 , also known as cryofluorane ( INN ), is a chlorofluorocarbon (CFC) with the molecular formula ClF 2 CCF 2 Cl. Its primary use has been as a refrigerant . It is a non-flammable gas with a sweetish, chloroform -like odor with the critical point occurring at 145.6 °C and 3.26 MP... | https://en.wikipedia.org/wiki/1,2-Dichlorotetrafluoroethane |
1,2-Dimorpholinoethane is an organic chemical and specifically a nitrogen-oxygen heterocyclic compound . At room temperature it is a solid with a melting point of 75 °C. [ 2 ] It has two tertiary amines in the same molecule meaning it is ideal for use as a polyurethane catalyst. [ 3 ] It has the CAS Registry Number 172... | https://en.wikipedia.org/wiki/1,2-Dimorpholinoethane |
1,4-Dioxin
1,2-Dioxin is a heterocyclic , organic , antiaromatic [ 1 ] compound with the chemical formula C 4 H 4 O 2 . It is an isomeric form of 1,4-dioxin (or p -dioxin).
Due to its peroxide -like characteristics, 1,2-dioxin is very unstable and has not been isolated. Calculations suggest that it would isomerize ra... | https://en.wikipedia.org/wiki/1,2-Dioxin |
1,2-Indandione is an organic compound with the molecular formula C 6 H 4 (CO) 2 CH 2 . A yellow solid, it is classified as a vicinal diketone on an indane framework. [ 1 ]
1,2-Indandione is used in the first stage of forensic identification of latent fingerprints. It is particularly useful for paper, and for items p... | https://en.wikipedia.org/wiki/1,2-Indandione |
A 1,2-Wittig rearrangement is a categorization of chemical reactions in organic chemistry , and consists of a 1,2-rearrangement of an ether with an alkyllithium compound. [ 1 ] The reaction is named for Nobel Prize winning chemist Georg Wittig . [ 2 ] [ 3 ]
The intermediate is an alkoxy lithium salt, and the final pro... | https://en.wikipedia.org/wiki/1,2-Wittig_rearrangement |
1,3,3-Trinitroazetidine ( TNAZ ) is an explosive heterocyclic compound that has been considered as a potential replacement for TNT because of its low melting point (101 °C) and good thermal stability (up to 240 °C). TNAZ was first synthesized by Archibald et al. in 1990. [ 3 ] Several synthesis routes are known, and bu... | https://en.wikipedia.org/wiki/1,3,3-Trinitroazetidine |
1,3,5-Triazido-2,4,6-trinitrobenzene , also known as TATNB (triazidotrinitrobenzene) and TNTAZB (trinitrotriazidobenzene), is an aromatic high explosive composed of a benzene ring with three azido groups (-N 3 ) and three nitro groups (-NO 2 ) alternating around the ring, giving the chemical formula C 6 (N 3 ) 3 (NO 2 ... | https://en.wikipedia.org/wiki/1,3,5-Triazido-2,4,6-trinitrobenzene |
1,3,5-Triheptylbenzene (also called sym -triheptylbenzene ) is an aromatic organic compound with a chemical formula C 27 H 48 and molar mass 372.67 g/mol. [ 1 ] It can be prepared by the hydrogenation reduction reaction of 1,1',1''-(benzene-1,3,5-triyl)tris(heptan-1-one). [ 2 ] Alternatively, 1-nonyne trimerizes to 1,3... | https://en.wikipedia.org/wiki/1,3,5-Triheptylbenzene |
1,3,5-Trinitrobenzene is one of three isomers of trinitrobenzene with the formula C 6 H 3 (NO 2 ) 3 . A pale yellow solid, the compound is highly explosive. [ 2 ]
1,3,5-Trinitrobenzene is produced by decarboxylation of 2,4,6-trinitrobenzoic acid . [ 2 ] [ 3 ]
1,3,5-Trinitrobenzene forms charge-transfer complexes with... | https://en.wikipedia.org/wiki/1,3,5-Trinitrobenzene |
1,3-Bisphosphoglyceric acid ( 1,3-Bisphosphoglycerate or 1,3BPG ) is a 3-carbon organic molecule present in most, if not all, living organisms. It primarily exists as a metabolic intermediate in both glycolysis during respiration and the Calvin cycle during photosynthesis . 1,3BPG is a transitional stage between glycer... | https://en.wikipedia.org/wiki/1,3-Bisphosphoglyceric_acid |
The chemical compound 1,3-dioxetanedione , or 1,3-dioxacyclobutane-2,4-dione , also known as dicarbonic anhydride , is a hypothetical oxide of carbon with formula C 2 O 4 . It can be considered a cyclic dimer of carbon dioxide (CO 2 ) or as a double ketone of 1,3-dioxetane (1,3-dioxacyclobutane).
Theoretical calculat... | https://en.wikipedia.org/wiki/1,3-Dioxetanedione |
In organic chemistry , a 1,3-dipolar compound or 1,3-dipole is a dipolar compound with delocalized electrons and a separation of charge over three atoms . They are reactants in 1,3-dipolar cycloadditions . [ 1 ] [ 2 ]
The dipole has at least one resonance structure with positive and negative charges having a 1,3 relat... | https://en.wikipedia.org/wiki/1,3-dipole |
1,4-Benzoquinone , commonly known as para -quinone , is a chemical compound with the formula C 6 H 4 O 2 . In a pure state, it forms bright-yellow crystals with a characteristic irritating odor, resembling that of chlorine , bleach , and hot plastic or formaldehyde. This six-membered ring compound is the oxidized deriv... | https://en.wikipedia.org/wiki/1,4-Benzoquinone |
1,4-Butanedithiol is an organosulfur compound with the formula HSCH 2 CH 2 CH 2 CH 2 SH . It is a malodorous, colorless liquid that is highly soluble in organic solvents. The compound has found applications in biodegradable polymers . [ 2 ]
Alkylation with geminal dihalides gives 1,3-di thiepanes . Oxidation gives t... | https://en.wikipedia.org/wiki/1,4-Butanedithiol |
12,022 ppm (cat, 7 hr) 2085 ppm (mouse, 8 hr) [ 2 ]
1,4-Dioxane ( / d aɪ ˈ ɒ k s eɪ n / ) is a heterocyclic organic compound , classified as an ether . It is a colorless liquid with a faint sweet odor similar to that of diethyl ether . The compound is often called simply dioxane because the other dioxane isomers ( 1,... | https://en.wikipedia.org/wiki/1,4-Dioxane |
18.62 (in acetonitrile) [ 2 ] (acidity of the conjugate acid C 14 H 18 N 2 H + )
1,8-Bis(dimethylamino)naphthalene is an organic compound with the formula C 10 H 6 (NMe 2 ) 2 (Me = methyl). It is classified as a peri-naphthalene , i.e. a 1,8-disubstituted derivative of naphthalene . Owing to its unusual structure, it ... | https://en.wikipedia.org/wiki/1,8-Bis(dimethylamino)naphthalene |
1,8-Diazabicyclo[5.4.0]undec-7-ene , or more commonly DBU , is a chemical compound and belongs to the class of amidine compounds. It is used in organic synthesis as a catalyst , a complexing ligand , and a non-nucleophilic base . [ 3 ]
DBU can be synthesised in three steps from caprolactam and acrylonitrile . First, t... | https://en.wikipedia.org/wiki/1,8-Diazabicyclo(5.4.0)undec-7-ene |
1-Arseno-3-phosphoglycerate is a compound produced by the enzyme glyceraldehyde 3-phosphate dehydrogenase , present in high concentrations in many organisms, from glyceraldehyde 3-phosphate and arsenate in the glycolysis pathway. [ 1 ] The compound is unstable and hydrolyzes spontaneously to 3-phosphoglycerate , bypass... | https://en.wikipedia.org/wiki/1-Arseno-3-phosphoglycerate |
1-Chloro-1,1-difluoroethane ( HCFC-142b ) is a haloalkane with the chemical formula C H 3 C Cl F 2 . It belongs to the hydrochlorofluorocarbon (HCFC) family of man-made compounds that contribute significantly to both ozone depletion and global warming when released into the environment. It is primarily used as a refr... | https://en.wikipedia.org/wiki/1-Chloro-1,1-difluoroethane |
1-Click , also called one-click or one-click buying , is the technique of allowing customers to make purchases with the payment information needed to complete the purchase having been entered by the user previously. [ 1 ] More particularly, it allows an online shopper using an Internet marketplace to purchase an item w... | https://en.wikipedia.org/wiki/1-Click |
1-Diazidocarbamoyl-5-azidotetrazole , often jokingly referred to as azidoazide azide , [ 5 ] is a heterocyclic inorganic compound with the formula C 2 N 14 . [ 6 ] It is a highly reactive and extremely sensitive explosive .
1-Diazidocarbamoyl-5-azidotetrazole was produced by diazotizing triaminoguanidinium chloride wi... | https://en.wikipedia.org/wiki/1-Diazidocarbamoyl-5-azidotetrazole |
1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC, EDAC or EDCI) is a water-soluble carbodiimide usually handled as the hydrochloride . [ 1 ]
It is typically employed in the 4.0-6.0 pH range. It is generally used as a carboxyl activating agent for the coupling of primary amines to yield amide bonds. While other carbo... | https://en.wikipedia.org/wiki/1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide |
This page provides supplementary chemical data on 1-Hexene .
The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet ( MSDS ) for this chemical from a reliable source such as SIRI , and follow its directions.
MSDS | https://en.wikipedia.org/wiki/1-Hexene_(data_page) |
1-Hydroxy-7-azabenzotriazole ( HOAt ) is a triazole used as a peptide coupling reagent . [ 2 ] It suppresses racemization that can otherwise occur during the reaction. [ 3 ]
HOAt has a melting point of 213-216 °C. [ 4 ]
This article about a heterocyclic compound is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/1-Hydroxy-7-azabenzotriazole |
1-Methylhistamine (also known as N τ -methylhistamine ( NMH )) is a metabolite of histamine.
NMH is formed by N τ -methylation of histamine, catalyzed by the enzyme Histamine N-methyltransferase .
NMH is excreted in the urine and can be measured as a biomarker of histamine activity. [ 2 ] While NMH has some biologica... | https://en.wikipedia.org/wiki/1-Methylhistamine |
This page provides supplementary chemical data on 1-Propanol ( n -propanol).
The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet ( MSDS ) for this chemical from a reliable source.
Table data obtained from CRC Handbook of Chemistry an... | https://en.wikipedia.org/wiki/1-Propanol_(data_page) |
In order theory , a branch of mathematics, the 1/3–2/3 conjecture states that, if one is comparison sorting a set of items then, no matter what comparisons may have already been performed, it is always possible to choose the next comparison in such a way that it will reduce the number of possible sorted orders by a fac... | https://en.wikipedia.org/wiki/1/3–2/3_conjecture |
In mathematics , the infinite series 1 / 4 + 1 / 16 + 1 / 64 + 1 / 256 + ⋯ is an example of one of the first infinite series to be summed in the history of mathematics ; it was used by Archimedes circa 250–200 BC. [ 1 ] As it is a geometric series with first term 1 / 4 and common ratio 1 / 4 , i... | https://en.wikipedia.org/wiki/1/4_+_1/16_+_1/64_+_1/256_+_⋯ |
How a three gluon vertex would appear in 't Hooft's double index notation. This makes the analogy to a string theory that will appear at large N apparent.
In quantum field theory and statistical mechanics , the 1/ N expansion (also known as the " large N " expansion ) is a particular perturbative analysis of quantum ... | https://en.wikipedia.org/wiki/1/N_expansion |
10-Hydroxydecanic acid is a specialized saturated fatty acid that is a minor constituent of royal jelly . [ 1 ] It was scientifically discovered in 1957. [ 2 ]
This biochemistry article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/10-Hydroxydecanoic_acid |
The 100,000 Genomes Project is a now-completed UK Government project managed by Genomics England that is sequencing whole genomes from National Health Service patients. The project is focusing on rare diseases , some common types of cancer , and infectious diseases. [ 1 ] [ 2 ] Participants give consent for their genom... | https://en.wikipedia.org/wiki/100,000_Genomes_Project |
A 100-year flood , also called a 1% flood , [ 1 ] is a flood event at a level that is reached or exceeded once per hundred years, on average . It has a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. [ 2 ] The estimated boundaries of inundation in a 100-year flood are marked on flood ma... | https://en.wikipedia.org/wiki/100-year_flood |
The 1000 Genomes Project ( 1KGP ), taken place from January 2008 to 2015, was an international research effort to establish the most detailed catalogue of human genetic variation at the time. Scientists planned to sequence the genomes of at least one thousand anonymous healthy participants from a number of different et... | https://en.wikipedia.org/wiki/1000_Genomes_Project |
The 1000 Plant Transcriptomes Initiative (1KP) was an international research effort to establish the most detailed catalogue of genetic variation in plants. It was announced in 2008 and headed by Gane Ka-Shu Wong and Michael Deyholos of the University of Alberta . The project successfully sequenced the transcriptomes (... | https://en.wikipedia.org/wiki/1000_Plant_Genomes_Project |
The 100K Pathogen Genome Project was launched in July 2012 by Bart Weimer (UC Davis) as an academic, public, and private partnership. [ 1 ] It aims to sequence the genomes of 100,000 infectious microorganisms to create a database of bacterial genome sequences for use in public health, outbreak detection, and bacterial ... | https://en.wikipedia.org/wiki/100K_Pathogen_Genome_Project |
The 100K Wellness Project was a 10-month Framingham -style longitudinal study , organized by Leroy Hood . The pilot phase took place between March and December 2014.
Participants submitted integrated data from whole-genome sequencing , gut microbiome , clinical laboratory tests and quantified self measures to provide ... | https://en.wikipedia.org/wiki/100K_Wellness_Project |
The 100 prisoners problem is a mathematical problem in probability theory and combinatorics . In this problem, 100 numbered prisoners must find their own numbers in one of 100 drawers in order to survive. The rules state that each prisoner may open only 50 drawers and cannot communicate with other prisoners after the f... | https://en.wikipedia.org/wiki/100_prisoners_problem |
10199 Chariklo / ˈ k ær ə k l oʊ / is the largest confirmed centaur , a class of minor planet in the outer Solar System . It orbits the Sun between Saturn and Uranus , grazing the orbit of Uranus . On 26 March 2014, astronomers announced the discovery of two rings (nicknamed Oiapoque and Chuí after the rivers that defi... | https://en.wikipedia.org/wiki/10199_Chariklo |
11β-Hydroxyandrostenedione ( 11β-OHA4 ), also known as 11β-hydroxyandrost-4-ene-3,17-dione , is an endogenous , naturally occurring steroid and androgen prohormone that is produced primarily, if not exclusively, in the adrenal glands . [ 1 ] It is closely related to adrenosterone (11-ketoandrostenedione; 11-KA4), 11-ke... | https://en.wikipedia.org/wiki/11β-Hydroxyandrostenedione |
12-Crown-4 , also called 1,4,7,10-tetraoxacyclododecane and lithium ionophore V, is a crown ether with the formula C 8 H 16 O 4 . It is a cyclic tetramer of ethylene oxide which is specific for the lithium cation.
12-Crown-4 can be synthesized using a modified Williamson ether synthesis , using LiClO 4 as a templating... | https://en.wikipedia.org/wiki/12-Crown-4 |
12-Hydroxyeicosatetraenoic acid ( 12-HETE ) is a derivative of the 20 carbon polyunsaturated fatty acid , arachidonic acid , containing a hydroxyl residue at carbon 12 and a 5 Z , 8Z ,10 E ,14 Z cis–trans configuration (Z=cis, E=trans) in its four double bonds. It was first found as a product of arachidonic acid metab... | https://en.wikipedia.org/wiki/12-Hydroxyeicosatetraenoic_acid |
12- O -Tetradecanoylphorbol-13-acetate ( TPA ), also commonly known as tetradecanoylphorbol acetate , tetradecanoyl phorbol acetate , and phorbol 12-myristate 13-acetate ( PMA ) is a diester of phorbol . It is a potent tumor promoter often employed in biomedical research to activate the signal transduction enzyme prote... | https://en.wikipedia.org/wiki/12-O-Tetradecanoylphorbol-13-acetate |
In the geometry of hyperbolic 4-space , the 120-cell honeycomb is one of five compact regular space-filling tessellations (or honeycombs ). With Schläfli symbol {5,3,3,3}, it has three 120-cells around each face. Its dual is the order-5 5-cell honeycomb , {3,3,3,5}.
It is related to the order-4 120-cell honeycomb , {5... | https://en.wikipedia.org/wiki/120-cell_honeycomb |
The 122 iron arsenide unconventional superconductors are part of a new class of iron-based superconductors . They form in the tetragonal I4/mmm, ThCr 2 Si 2 type, crystal structure. The shorthand name "122" comes from their stoichiometry ; the 122s have the chemical formula AEFe 2 Pn 2 , where AE stands for alkaline ea... | https://en.wikipedia.org/wiki/122_iron_arsenide |
The 136th Civil Engineer Squadron (136 CES) is a unit of the 136th Airlift Wing , Texas Air National Guard , Texas Military Forces stationed at Naval Air Station Fort Worth Joint Reserve Base , Fort Worth, Texas . If activated to federal service, the Squadron is gained by the United States Air Force Air Mobility Comman... | https://en.wikipedia.org/wiki/136th_Civil_Engineer_Squadron |
15-Crown-5 is a crown ether with the formula (C 2 H 4 O) 5 . It is a cyclic pentamer of ethylene oxide that forms complex with various cations , including sodium (Na + ) [ 2 ] and potassium (K + ); [ 3 ] however, it is complementary to Na + and thus has a higher selectivity for Na + ions.
15-Crown-5 can be synthesize... | https://en.wikipedia.org/wiki/15-Crown-5 |
15-Hydroxyeicosatetraenoic acid (also termed 15-HETE , 15( S )-HETE , and 15 S -HETE ) is an eicosanoid , i.e. a metabolite of arachidonic acid . Various cell types metabolize arachidonic acid to 15( S )-hydroperoxyeicosatetraenoic acid (15( S )-HpETE). This initial hydroperoxide product is extremely short-lived in cel... | https://en.wikipedia.org/wiki/15-Hydroxyeicosatetraenoic_acid |
In mathematics , the 15 theorem or Conway–Schneeberger Fifteen Theorem , proved by John H. Conway and W. A. Schneeberger in 1993, states that if a positive definite quadratic form with integer matrix represents all positive integers up to 15, then it represents all positive integers. [ 1 ] The proof was complicated, an... | https://en.wikipedia.org/wiki/15_and_290_theorems |
17α-Epiestriol , or simply 17-epiestriol , also known as 16α-hydroxy-17α-estradiol or estra-1,3,5(10)-triene-3,16α,17α-triol , is a minor and weak endogenous estrogen , and the 17α- epimer of estriol (which is 16α-hydroxy-17β-estradiol). [ 1 ] [ 2 ] [ 3 ] It is formed from 16α-hydroxyestrone . [ 4 ] [ 5 ] In contrast t... | https://en.wikipedia.org/wiki/17α-Epiestriol |
17β-Hydroxysteroid dehydrogenases ( 17β-HSD , HSD17B ) ( EC 1.1.1.51 ), also 17-ketosteroid reductases ( 17-KSR ), are a group of alcohol oxidoreductases which catalyze the reduction of 17-ketosteroids and the dehydrogenation of 17β-hydroxysteroids in steroidogenesis and steroid metabolism . [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5... | https://en.wikipedia.org/wiki/17β-Hydroxysteroid_dehydrogenase |
18-Crown-6 is an organic compound with the formula [C 2 H 4 O] 6 and the IUPAC name of 1,4,7,10,13,16-hexaoxacyclooctadecane. It is a white, hygroscopic crystalline solid with a low melting point. [ 1 ] Like other crown ethers , 18-crown-6 functions as a ligand for some metal cations with a particular affinity for pot... | https://en.wikipedia.org/wiki/18-Crown-6 |
The 18-electron rule is a chemical rule of thumb used primarily for predicting and rationalizing formulas for stable transition metal complexes, especially organometallic compounds . [ 1 ] The rule is based on the fact that the valence orbitals in the electron configuration of transition metals consist of five ( n −1)d... | https://en.wikipedia.org/wiki/18-electron_rule |
The 1874 Transit of Venus Expedition to Campbell Island was an astronomical expedition by French scientists to observe the 9 December 1874 transit of Venus on subantarctic Campbell Island in the Southern Ocean some 600 km south of New Zealand . It was one of several such scientific expeditions from various countries s... | https://en.wikipedia.org/wiki/1874_Transit_of_Venus_Expedition_to_Campbell_Island |
The 1874 Transit of Venus Expedition to Hawaii was an astronomical expedition by British scientists to observe the December 8 transit of Venus at three separate observing sites in the Hawaiian Islands , then known as the Sandwich Islands. [ 1 ] It was one of five 1874 transit expeditions organized by George Biddell Air... | https://en.wikipedia.org/wiki/1874_Transit_of_Venus_Expedition_to_Hawaii |
On October 2, 1901, a former milk wagon horse named Jim showed signs that he had contracted tetanus and was euthanized . He was used to produce serum containing diphtheria antitoxin ( antibodies against diphtheria toxin ). Jim produced over 30 US quarts (7.5 US gallons; 28.5 litres) of diphtheria antitoxin in his caree... | https://en.wikipedia.org/wiki/1901_diphtheria_antitoxin_contamination_incident |
The American-Australian Scientific Expedition to Arnhem Land (also known as the Arnhem Land Expedition) remains one of the most significant, most ambitious and least understood expeditions. [ 1 ] Commenced in February 1948, it was one of the largest scientific expeditions to have taken place in Australia and was conduc... | https://en.wikipedia.org/wiki/1948_American-Australian_Scientific_Expedition_to_Arnhem_Land |
This article is a summary of the 1970s in science and technology .
The 1970s in science and technology reached its height with the ambitious Voyager Program , which sent the Voyager 1 and Voyager 2 uncrewed expeditions to several of the outer planets in the Solar System . The program also included a Voyager Golden Rec... | https://en.wikipedia.org/wiki/1970s_in_science_and_technology |
The Aral smallpox incident was a 30 July 1971 outbreak of the viral disease which occurred as a result of a field test at a Soviet biological weapons (BW) facility on an island in the Aral Sea . The incident sickened ten people, of whom three died, and came to widespread public notice only in 2002. [ 1 ]
In 1954, an e... | https://en.wikipedia.org/wiki/1971_Aral_smallpox_incident |
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sha... | https://en.wikipedia.org/wiki/1977_Trinity |
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sha... | https://en.wikipedia.org/wiki/1977_trinity |
This article is a summary of the 1980s in science and technology . | https://en.wikipedia.org/wiki/1980s_in_science_and_technology |
" 1984 " is an American television commercial that introduced the Apple Macintosh personal computer. It was conceived by Steve Hayden , Brent Thomas, and Lee Clow at Chiat/Day , produced by New York production company Fairbanks Films, and directed by Ridley Scott . The ad was a reference to George Orwell 's noted 1949 ... | https://en.wikipedia.org/wiki/1984_(advertisement) |
Proposition 65 (formally titled The Safe Drinking Water and Toxic Enforcement Act of 1986 , and also referred to as Prop 65 ) is a California law passed by direct voter initiative in 1986 by a 63%–37% vote. Its goals are to protect drinking water sources from toxic substances that cause cancer or birth defects and to r... | https://en.wikipedia.org/wiki/1986_California_Proposition_65 |
This article is a summary of the 1990s in science and technology .
Some technologies invented and improved during the 1990s: | https://en.wikipedia.org/wiki/1990s_in_science_and_technology |
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