C1, C01, C.I or C-1 may refer to:
Arts and media
* C1, a
note-octave
Scientific pitch notation (SPN), also known as American standard pitch notation (ASPN) and international pitch notation (IPN), is a method of specifying musical pitch by combining a musical note name (with accidental if needed) and a number ide ...
in music
*
C1 Television, a Mongolian television channel
*
Schecter C-1 Hellraiser FR
The Schecter C-1 Hellraiser FR is a guitar model made by Schecter Guitar Research.
The model properties include a mahogany body with a Quilt maple, quilted maple top, an Original Floyd Rose and EMG, Inc., EMG active Humbucker pickups.
The 200 ...
, a guitar model
* A
Yamaha Yamaha may refer to:
* Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below).
** Yamaha Music Foundation, an organization estab ...
grand piano model
* "C1", a slang expression in the video game ''
Counter-Strike
''Counter-Strike'' (''CS'') is a series of multiplayer tactical first-person shooter video games in which teams of terrorists battle to perpetrate an act of terror (bombing, hostage-taking, assassination) while counter-terrorists try to preve ...
'', used to express agreement
Biology and medicine
Anatomy
*
Cervical vertebra 1
In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire head.
The atlas is ...
, the first cervical vertebrae of the vertebral column
*
, a spinal nerve of the cervical segment
Biochemistry
*
C1 complex, the first component of the classical complement pathway
*
C1 domain, an important secondary messenger protein domain
*
C1-inhibitor, a human serine protease inhibitor
*
C1 regulatory sequence for the insulin gene
*
Apolipoprotein C1
Apolipoprotein C-I is a protein component of lipoproteins that in humans is encoded by the ''APOC1'' gene.
Function
The protein encoded by this gene is a member of the apolipoprotein C family. This gene is expressed primarily in the liver, ...
, a human lipoprotein
*
Chlorophyll c1
Chlorophyll ''c'' is a form of chlorophyll found in certain marine algae, including the photosynthetic Chromista (e.g. diatoms and brown algae) and dinoflagellates.
It has a blue-green color and is an accessory pigment, particularly significan ...
, a form of chlorophyll
*
Cytochrome C1
Cytochrome C1 (also known as Complex III subunit 4) is a protein encoded by the '' CYC1'' gene. Cytochrome is a heme-containing subunit of the cytochrome b-c1 complex, which accepts electrons from Rieske protein and transfers electrons to cytoc ...
, a precursor protein to Cytochrome C
*
Proanthocyanidin C1, a type of polyphenolic compound
*
Prostaglandin C1
In enzymology, a Prostaglandin-A1 Δ-isomerase () is an enzyme that catalyzes the chemical reaction
:(13E)-(15S)-15-hydroxy-9-oxoprosta-10,13-dienoate \rightleftharpoons (13E)-(15S)-15-hydroxy-9-oxoprosta-11,13-dienoate
Hence, this enzyme has one ...
, a form of prostaglandins
Other uses in biology and medicine
*
C1 and P1 (neuroscience), a component of the visual evoked potential
*
ATC code C01
C01A Cardiac glycosides
C01AA Digitalis glycosides
:C01AA01 Acetyldigitoxin
:C01AA02 Acetyldigoxin
:C01AA03 Digitalis leaves
:C01AA04 Digitoxin
:C01AA05 Digoxin
:C01AA06 Lanatoside C
:C01AA07 Deslanoside
:C01AA08 Metildigoxin
:C01AA09 Gi ...
, a subgroup of the Anatomical Therapeutic Chemical Classification System
* C01, the ICD-10 code for "malignant neoplasm of base of tongue", a form of
oral cancer
Oral cancer, also known as mouth cancer, is cancer of the lining of the lips, mouth, or upper throat. In the mouth, it most commonly starts as a painless white patch, that thickens, develops red patches, an ulcer, and continues to grow. When on ...
* C1, the short name for a microfluidic single-cell analysis system sold by
Fluidigm
Standard BioTools Inc. (formerly Fluidigm) is an American company engaged in the design, manufacture and sale of biological research equipment based on integrated fluidic circuit technology. The company's founders leveraged their semiconductor ...
Chemistry
*
C1 Chemistry, study of methane, methanol, carbon monoxide, carbon dioxide
Computing
Hardware
*
C-One, a single-board microcomputer
*
C1 NES TV
The Nintendo Entertainment System (NES), an 8-bit third-generation home video game console produced by Nintendo, had numerous model variants produced throughout its lifetime. It was originally released in 1983 as the (and widely known as the ) ...
, a family of Nintendo-television-set hybrids manufactured by Sharp Corporation in 1983
* ATI C1, codename of the Xbox 360 GPU
Xenos
Other uses in computing
*
C0 and C1 control codes
The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use ASCII and derivatives of ASCII. The codes represent additional information about the text, such as the position of a curso ...
defined in ISO 6429
*
C1 (protocol)
Punter is a protocol for file transfer developed in the 1980s by Steve Punter. There are various types of Punter such as PET Transfer Protocol (''PTP''), ''C1'' and ''C2''.
PET Transfer Protocol
The PET Transfer Protocol (''PTP''), also known ...
, a 1984 protocol for file transfer, also known as "Punter"
*
TCSEC
Trusted Computer System Evaluation Criteria (TCSEC) is a United States Government Department of Defense (DoD) standard that sets basic requirements for assessing the effectiveness of computer security controls built into a computer system. The TC ...
C1 security class
* A CPU power state in the
Advanced Configuration and Power Interface
Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto c ...
Mathematics
*
, the set of all
continuously differentiable
In mathematics, a differentiable function of one real variable is a function whose derivative exists at each point in its domain. In other words, the graph of a differentiable function has a non- vertical tangent line at each interior point in ...
functions
*
C1 field
C1, C01, C.I or C-1 may refer to:
Arts and media
* C1, a note-octave in music
* C1 Television, a Mongolian television channel
* Schecter C-1 Hellraiser FR, a guitar model
* A Yamaha grand piano model
* "C1", a slang expression in the video gam ...
, a quasi-algebraically closed field
* C1, the first of four pure modules taken in the
Advanced Level (UK)
The General Certificate of Education (GCE) Advanced Level, or A Level, is a main school leaving qualification in England, Wales, Northern Ireland, the Channel Islands and the Isle of Man. It is available as an alternative qualification in other ...
Maths syllabus
Transportation
Air
*
C-1 Trader, a cargo-version of the S-2 Tracker anti-submarine warfare aircraft of the United States Navy
*
AEG C.I, a German World War I reconnaissance aircraft
*
AGO C.I
The AGO C.I was a First World War German pusher reconnaissance biplane that used a pod-and-boom configuration.
Development
The crew and pusher engine shared a central nacelle, and the twin booms carried the tail and the four-wheeled landing ge ...
, a 1915 German reconnaissance biplane
*
Albatros C.I
The Albatros C.I, (post-war company designations L.6 & L.7), was the first of the successful C-series of two-seat general-purpose biplanes built by Albatros Flugzeugwerke during World War I. Based on the unarmed Albatros B.II, the C.I reversed ...
, a 1915 German two-seat general-purpose biplane
*
Aviatik C.I, a 1915 German observation plane
*
Cierva C.1, a 1920 Spanish experimental autogyro
*
DFW C.I __NOTOC__
The DFW C.I was a German reconnaissance aircraft produced during World War I. Derived from the company's DFW B.I, B.I design of 1914, the C.I kept the same basic fuselage design, but dispensed with the B.I's distinctive crescent-shaped ...
, a WWI German reconnaissance aircraft
*
Douglas C-1
The Douglas C-1 was a cargo/transport aircraft produced by the Douglas Aircraft Corporation for the United States Army Air Service starting in 1925.
Design and development
Douglas received an order for nine single-engined transport aircraft in 1 ...
, a cargo/transport airplane produced by Douglas Aircraft for the U.S. Army Air Service starting in 1925
*
Fokker C.I, a 1918 German reconnaissance biplane
*
Friedrichshafen C.I
Friedrichshafen FF.33 was a German single-engined reconnaissance three-bay wing structure biplane, using twin floats, designed by Flugzeugbau Friedrichshafen in 1914 for the ''Marine-Fliegerabteilung'' aviation forces of the ''Kaiserliche Mar ...
, a 1914 German single-engined amphibious reconnaissance biplane
*
Hansa-Brandenburg C.I, a 1916 German 2-seater armed single-engine reconnaissance biplane
*
Kawasaki C-1
The Kawasaki C-1 (川崎 C-1) is a twin-engined short-range military transport aircraft developed and manufactured by the Japanese conglomerate Kawasaki Heavy Industries. It is solely used by the Japan Air Self-Defense Force (JASDF).
Developm ...
, an indigenous transport aircraft of the Japanese Air Self-Defense Forces
*
Otto C.I, a 1915 German reconnaissance biplane
*
Rumpler C.I, a 1915 German two-seater single-engine reconnaissance biplane
*
Southern Cross Airport (New Jersey) (FAA LID: C01)
Land
Routes
*
Circumferential Road 1 or C-1, an arterial road of Manila, Philippines
*
London Buses route C1
*
Route C1 (Shuto Expressway)
The , signed as Route C1, is one of the routes of the Shuto Expressway system serving the central part of the Greater Tokyo Area. The route is a complete loop around the central Tokyo wards of Chiyoda, Chūō, and Minato, with a total length ...
, the Inner Loop of Tokyo's Shuto Expressway system
* Claro M. Recto Avenue, a
road in Metro Manila, Philippines
*
Massachusetts State Route C1
Land vehicles
*
BMW C1
The BMW C1 is an enclosed scooter made by Bertone for BMW. Compared to a conventional scooter, the C1 offered extra safety features and protection from the elements. The rider would sit in a car-type seat (with a four-point seat-belt) and adopt ...
, a cabin scooter
*
Chevrolet Corvette C1, first generation sold from 1953 to 1962, denoted a solid-axle rear-end
*
Citroën C1
The Citroën C1 is a city car marketed by Citroën from June 2005 to January 2022, originally developed as part of the B-Zero project by PSA Peugeot Citroën in a joint venture with Toyota, with two generations produced.
The C1 was developed al ...
, a small car
*
Ford C1 platform
The Ford Global C-car Platform is Ford's global compact car automobile platform. It replaces the Ford C170 platform and Mazda B platform (BJ). The C1 platform debuted with the European Ford Focus C-Max compact MPV in early 2004. The platform is d ...
, the Ford Motor Company's global compact car automobile platform
*
Lit C-1
Lit Motors Inc. is a San Francisco-based company that designed conceptual two-wheeled vehicles, including a fully electric, gyroscopically stabilized vehicle.
Founded by Daniel K. Kim in 2010, Lit Motors designed concepts for two-wheeled vehicl ...
, a prototype cabin motorcycle
*
Nimrod NRA/C1, a 1981 test design racing car
* Sauber C1, a
Sauber
Sauber Motorsport AG is a Swiss motorsport engineering company. It was founded in 1970 (as PP Sauber AG) by Peter Sauber, who progressed through hillclimbing and the World Sportscar Championship to reach Formula One in . After operating it ...
sport car
Other uses in land transport
* C-1, the numberplate of the
Prime Minister of Australia's official VIP transportation
* A type of
heavy goods vehicle licence
* A one-way traffic sign in the
Vienna Convention on Road Signs and Signals
The Convention on Road Signs and Signals, commonly known as the Vienna Convention on Road Signs and Signals, is a multilateral treaty
A multilateral treaty is a treaty to which two or more sovereign states are parties. Each party owes the sam ...
Rail
*
Bavarian C I, an 1847 German steam locomotives class
*
GNR Class C1 (small boiler)
The Great Northern Railway (GNR) Small Boiler Class C1 is a class of steam locomotive, the first 4-4-2 or Atlantic type in Great Britain. They were designed by Henry Ivatt in 1897. In total 22 were built between 1898 and 1903 at Doncaster Wo ...
, a British 4-4-2 steam locomotive
*
GNR Class C1 (large boiler)
The Great Northern Railway (GNR) Class C1 is a type of 4-4-2 steam locomotive. One, ex GNR 251, later LNER 2800, survives in preservation. Much like their small boiler cousins, they were capable of reaching speeds of up to 90 mph (145&nb ...
, a British 4-4-2 steam locomotive
*
LB&SCR C1 class, an 1882 British freight steam locomotive
*
Long Island Rail Road C1, a bilevel railcar built by Tokyu Car Corporation
*
NER Class C1, a British 0-6-0 steam locomotive
*
PRR C1
The PRR C1 was the Pennsylvania Railroad's class of 0-8-0 steam locomotive, used in switching service. The 0-8-0 was common on most railroads, but not on PRR; when the railroad needed bigger motive power, they used the 2-8-0 "Consolidation". The P ...
, an American PRR steam locomotive
*
Finnish Steam Locomotive Class C1
Sea
* , a C-class submarine of the Royal Navy
* , a C-class submarine of the United States Navy
* , a protected cruiser of the United States Navy
*
Type C1 ship
Type C1 was a designation for small cargo ships built for the United States Maritime Commission before and during World War II. Total production was 493 ships built from 1940 to 1945. The first C1 types were the smallest of the three original ...
, a small cargo vessel built by the United States in large numbers before and during World War II
* ''
Isaac Peral'' (C-1), a Spanish submarine
Space
*
Cluster 1, also known as Rumba, an ESA satellite
Sports
* C1, a solo
canoe
A canoe is a lightweight narrow water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using a single-bladed paddle.
In British English, the term ...
discipline including
sprint canoe
A sprint canoe is a canoe used in International Canoe Federation canoe sprint. It is an open boat propelled by one, two or four paddlers from a kneeling position, using single-bladed paddles. The difficulty of balance can depend on how wide or nar ...
and
canoe slalom
Canoe slalom (previously known as whitewater slalom) is a competitive sport with the aim to navigate a decked canoe or kayak through a course of hanging downstream or upstream gates on river rapids in the fastest time possible. It is one of th ...
*
C1 (classification), a para-cycling classification
* C1, an abbreviation for Class One
offshore powerboat racing
Offshore powerboat racing is a type of racing by ocean-going powerboats, typically point-to-point racing.
In most of the world, offshore powerboat racing is led by the Union Internationale Motonautique (UIM) regulated Class 1 and Powerboat P1. ...
* 'C1', the top category in
Group C
Group C was a category of sports car racing introduced by the FIA in 1982 and continuing until 1993, with '' Group A'' for touring cars and '' Group B'' for GTs.
It was designed to replace both Group 5 special production cars (closed top t ...
sportscar racing, used between 1985 and 1990
* C1, the
UEFA Champions League
The UEFA Champions League (abbreviated as UCL, or sometimes, UEFA CL) is an annual club football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competi ...
(formerly known as the European Cup) in football
**
Serie C1
Lega Pro Prima Divisione was the third highest football league in Italy. It consisted of 33 teams, divided geographically into two divisions of 16 and 17 teams for group A and B respectively. Until 2008 it was known as Serie C1.
Before the 1978 ...
, the third highest football league in Italy until 2008
Other uses
* C1, an international standard paper size defined in
ISO 216
ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, including A4, the most commonly available paper si ...
(648×917 mm)
*
Bills C-1 and S-1, a ''pro forma'' bill normally introduced at the start of a parliamentary session in the Canadian House of Commons
* C1, also known as
Vlakplaas, a unit of the South African Police responsible for assassinating opponents of Apartheid during the 1980s
* C1, a level in the
Common European Framework of Reference for Languages
* C1, the use class for hotels, in
town and country planning in the United Kingdom
Town and country planning in the United Kingdom is the part of English land law which concerns land use planning. Its goal is to ensure sustainable economic development and a better environment. Each country of the United Kingdom has its own p ...
* C1, a
NRS social grade
The NRS social grades are a system of demographic classification used in the United Kingdom. They were originally developed by the National Readership Survey (NRS) to classify readers, but are now used by many other organisations for wider appl ...
in the United Kingdom for the lower middle class
* a 2001 1.3 megapixels
Olympus digital camera model
* a
class of FM radio broadcasting in North America
*
C1 pylon
A transmission tower, also known as an electricity pylon or simply a pylon in British English and as a hydro tower in Canadian English, is a tall structure, usually a steel lattice tower, used to support an overhead power line.
In electrical ...
, a type of high voltage pylon
* Caldwell 1 (
NGC 188
NGC 188 (also known as Caldwell 1) is an open cluster in the constellation Cepheus. It was discovered by John Herschel in 1825.
Unlike most open clusters that drift apart after a few million years because of the gravitational interaction of our ...
), an open cluster in Cepheus
*
C-1 visa, a type of visa for individuals transiting through the United States
See also
*
Cl (disambiguation)
CL or cl may refer to:
Arts and entertainment
* CL (rapper) or Lee Chae-rin (born 1991), singer and rapper, former leader of the K-pop girl group 2NE1
* Creative Loafing, a newspaper publisher
Brands and enterprises
* Colgate-Palmolive's NYS ...
*
CI (disambiguation)
*
1C (disambiguation)
{{Letter-Number Combination Disambiguation