** Fading model, for example Rayleigh fading, Ricean fading, log-normal shadow fading and frequency selective ( dispersive ) fading

** selective and ignores contrary evidence or explains it away ; or

** List of selective high schools in New South Wales

** Tianeptine — paradoxical antidepressant ( considered to be a selective serotonin reuptake enhancer ( SSRE ) ( note that no widely known proof of direct SSRE action exists )), improves mood and reduces anxiety ; action on the NMDA and AMPA receptor, a hypothesized mechanism of action, based on tianeptine's effect of promoting stress-associated impaired neuroplasticity ; it enhances the extracellular concentration of dopamine in the nucleus accumbens and modulates the D < sub > 2 </ sub > and D < sub > 3 </ sub > dopamine receptors, but this effect is modest and almost certainly indirect.

** Women calling for bread in Petrograd start riots, which spontaneously spread throughout the city.

** Warsaw Treaty Organization officially dissolved in accordance with a protocol calling for a “ transition to all-European structures.

** WWII: Appeal of 18 June: General Charles de Gaulle, de facto leader of the Free French Forces, makes his first broadcast appeal over Radio Londres from London rallying French Resistance, calling on all French people to continue the fight against Nazi Germany: " France has lost a battle.

** Sheikh Mujibur Rahman, political leader of then East Pakistan ( present day-Bangladesh ), delivers his famous speech in the Racecourse Field in Dhaka, calling on the masses to be prepared to fight for national independence.

** In Ceylon, a group calling themselves the People ’ s Liberation Front begins a rebellion against the Bandaranaike government.

** During a severe thunderstorm over Washington, a man calling himself D. B. Cooper parachutes from the Northwest Orient Airlines plane he hijacked, with US $ 200, 000 in ransom money, and is never seen again ( as of March 2008, this case remains the only unsolved skyjacking in history ).

** Country calling codes

** Object composition, combining simpler data types into more complex data types, or function calls into calling functions

** ( 1 ) calling on United States Government officials to display the flag of the United States on all Government buildings on Loyalty Day ; and

** The text Duo Seraphim (" Two angels were calling one to the other ...") begins as a duet.

** Ihug launches ihugPhone, VoIP-based toll bypass and post-paid calling card voice services

** The number 700 bus runs frequently from Brighton to Portsmouth calling at Bognor Regis.

** a ringing tone signifying that the calling party has yet to answer the telephone

** a busy signal ( or engaged tone ) signifying that the calling party's telephone is being used in a telephone call to another person ( or is " off the hook " though no number has been dialled, i. e. the customer does not want to be disturbed )

** a fast busy signal ( also called reorder tone or overflow busy tone ) signifying that there is congestion in the telephone network, or possibly that the calling subscriber has delayed too long in dialling all the necessary digits.

** 9 fast, calling at Clapham Junction only

** 4 semi-fast, calling at Norwood Junction only

** 2 stopping, calling at all stations via Sydenham

** " The calling " ( in Crisis # 31, 1989 )

** 2 calling at Purley, East Croydon and Norwood Junction

** 2 calling at Purley, East Croydon, Norwood Junction, New Cross Gate and London Bridge

** One train per hour calling at: Reading, Didcot Parkway, Swindon, Bristol Parkway, Newport and Cardiff Central.

** One train per hour calling at: Reading, Swindon, Bristol Parkway, Newport, Cardiff Central, Bridgend, Port Talbot Parkway, Neath and Swansea.

** One train per hour calling at: Reading, Swindon, Chippenham, Bath Spa and Bristol Temple Meads.

** SS-C1 Sepal radar system

** Defocus aberration, which occurs when a system is out of focus

** immune system: antibody — host — vaccine — immune cell — AIDS — T-cell — leucocyte

** Domestic: extensive microwave radio relay links ; domestic satellite system with 3 earth stations

** IMR-2M1-Simplified model without the mine-clearing system.

** The solar system ( BIG made SMALL )

** Romano-Germanic subgroup ( comprising those legal systems where legal science was formulated according to Roman Law-see also Civil law ( legal system ))

** Dispersion relation, the mathematical description of dispersion in a system

** using another lower-level device driver ( e. g. file system drivers using disk drivers )

** allowing the operating system direct access to hardware resources

** A ground bus or earth bus is a conductor used as a zero voltage reference in a system, often connected to ground or earth.

** LTI system theory

** Digital filter, a system that performs mathematical operations to reduce or enhance certain aspects of a signal

** Informally, any GPS navigation device, especially an automotive navigation system

** Han ' gŭl in the McCune – Reischauer system.

** Hankul in Yale Romanization, a system recommended for technical linguistic studies.

** domestic: interisland microwave system and HF radio police net ; domestic satellite communications system

** ISO 3166-1 numeric – three-digit country codes which are identical to those developed and maintained by the United Nations Statistics Division, with the advantage of script ( writing system ) independence, and hence useful for people or systems using non-Latin scripts.

** Point system:

** Domestic telephone system: a national fiber-optic cable interurban trunk system is nearing completion ; rural exchanges are being improved and expanded ; mobile cellular systems are being installed ; access to the Internet is available ;

** International telephone system: landline connections to Latvia and Poland ; major international connections are to Denmark, Sweden, and Norway by submarine cable for further transmission by satellite

** Bearing and circulating system oils