Single ions, such as synaptically released zinc, are also considered neurotransmitters by some, as are some gaseous molecules such as nitric oxide ( NO ), hydrogen sulfide ( H < sub > 2 </ sub > S ), and carbon monoxide ( CO ).

* Single displacement reaction, a chemical reaction concerning the exchange of ions

Also in case of Single Instructions Multiple Data — a case when a lot of data from the same type has to be processed, modern processors can disable parts of the pipeline so that when a single instruction is executed many times, the CPU skips the fetch and decode phases and thus greatly increases performance on certain occasions, especially in highly monotonous program engines such as video creation software and photo processing.

Single crystal diamond can be made containing various dopants.

* SMATV headend, ( Single Master Antenna Television ) This type of headend can be used for hotels, motels, and commercial properties.

Single powerful blows to the head ( particularly the jawline and temple ) can produce a cerebral concussion and cause a sudden, dramatic KO.

Single or chronic exposure can lead to berylliosis, an incurable lung condition.

The loading gate on the original Colt designs ( and on nearly all single-action revolvers since, such as the famous Colt Single Action Army ) is on the right side, which was done to facilitate loading while on horseback ; with the revolver held in the left hand, the cartridges can easily be ejected and loaded with the right.

Single shotguns are also lightest, which can be an advantage if they are carried hunting, though it does mean they have the most felt recoil.

The definition of " open system " can be said to have become more formalized in the 1990s with the emergence of independently administered software standards such as The Open Group's Single UNIX Specification.

Single bridges also can provide extremely high performance in specialized applications such as storage area networks.

Single beds can be a couple of centimetres to several meters thick.

Single processing steps or components of a workflow can basically be defined by three parameters:

Jamming can be defeated by using very efficient transmitting antennas, carefully choosing the transmitted frequency, changing transmitted frequency often, using Single Sideband, and properly aiming the receiving antenna.

Latifah still wears the key to the motorcycle around her neck, which can be seen throughout her performance in her sitcom Living Single.

Single quinta vintage ports are wines that originate from a single estate, unlike the standard bottlings of the port wine houses which can be sourced from a number of quintas.

Single pass TM proteins can be categorized as Type I, which are positioned such that their carboxy-terminus is towards the cytosol, or Type II, which have their amino-terminus towards the cytosol.

Single malts can be bottled by the distillery that produced them or by an Independent Bottler.

Single carrier devices are typically used to study the kinetics and charge transport mechanisms of an organic material and can be useful when trying to study energy transfer processes.

Single parenting can result from separation or divorce of a couple with children.

Single burner alcohol stoves, beverage can stoves, and small liquid fuel and gas canister stoves are well suited for backpacking.

* Single pass welds can be made in thick plates with normal equipment.

Single malts can be bottled by the distillery that produced them or by an independent bottler.

In the UK, the vehicles can be obtained as kits or entirely assembled by Caterham and registered for the road under SVA ( Single Vehicle Approval ) regulations.

Single sided flex circuits can be fabricated with or without such protective coatings as cover layers or cover coats, however the use of a protective coating over circuits is the most common practice.

Only the President can direct the use of nuclear weapons, including the Single Integrated Operational Plan ( SIOP ).

Single journey tickets and octopus card reloads can be purchased at vending machines while tourist passes, octopus cards and other special tickets must be purchased at the ticket counter.

Single stage presses are commonly most used for high-precision rifle cartridge handloading, but may be used for high-precision reloading of all cartridge types, and for working up loads ( developing loading recipes ) for ultimately manufacturing large numbers of cartridges on a progressive press.

Because of the " Single Market " of the EC, any food – even if irradiated – must be allowed to be marketed in any other Member State even if a general ban of food irradiation prevails, under the condition that the food has been irradiated legally in the state of origin.

In June 1990, Major suggested that the proposed Single European Currency should be a " hard ecu ", competing for use against existing national currencies ; this idea was not in the end adopted.

Single molecules cannot usually be observed by light ( as noted above ), but small molecules and even the outlines of individual atoms may be traced in some circumstances by use of an atomic force microscope.

Zurek, A Single Quantum Cannot be Cloned, Nature 299 ( 1982 ), pp. 802 – 803.

Single passwords are also much less convenient to change because many people need to be told at the same time, and they make removal of a particular user's access more difficult, as for instance on graduation or resignation.

The Single European Sky is a European Commission initiative by which the design, management and regulation of airspace will be coordinated throughout the European Union ( ECAA area ).

" Single grain " does not mean that only a single type of grain was used to produce the whisky — rather, the adjective " single " refers only to the use of a single distillery ( and making a " single grain " requires using a mixture of grains, as barley is a type of grain and some malted barley must be used in all Scotch whisky ).

Beginning in 1998, a joint working group known as the Austin Group began to develop the combined standard that would be known as the Single UNIX Specification Version 3 and as POSIX: 2001 ( formally: IEEE Std 1003. 1-2001 ).

Single Jigs should not be confused with slides ; they are the least common of the jigs, performed in ghillies, in a 6 / 8 or less commonly a 12 / 8 time.

* Four new operating systems: DOS / VS ( DOS with virtual storage ), OS / VS1 ( OS / 360 MFT with virtual storage ), OS / VS2 ( OS / 360 MVT with virtual storage ) Release 1, termed SVS ( Single Virtual Storage ), and Release 2, termed MVS ( Multiple Virtual Storage ) and planned to be available 20 months later ( at the end of March 1974 ), and VM / 370 – the re-implemented CP / CMS

For example, in Love ( 1927 ) a title card reads, " I like to be alone "; in The Single Standard ( 1929 ) her character says, " I am walking alone because I want to be alone "; in Susan Lenox ( Her Fall and Rise ) ( 1931 ) she says to a suitor, " This time I rise ... and fall ... alone "; in Inspiration ( 1931 ) she tells a fickle lover, " I just want to be alone for a little while "; in Mata Hari ( 1931 ) she says to her new amour, " I never look ahead.

Single paragraphs began to run for page after page, in which an initial noun would be succeeded by pronouns surrounded by clouds of adjectives and prepositional clauses, far from their original referents, and verbs would be deferred and then preceded by a series of adverbs.

Single nucleotide polymorphisms and other gene variations have been investigated in relation to neuropsychiatric disorders, e. g., a one-base pair deletion at – 601 and a four-base pair deletion at 722 – 725 in exon 1 in relation to bipolar disorder and autism.