6C21
6C or VI-C may refer to : * Sixth Cambridge Survey of radio sources * Alfa Romeo 6C, a road, race and sports car * Keratin 6C in biochemistry * Stalag VI-C, a German prisoner of war camp * Carbon (6C), a chemical element * 6C, the production code for the 1982 ''Doctor Who'' serial '' Time-Flight'' See also *C6 (other) C6, C06, C VI or C-6 may refer to: Vehicles * AEG C.VI, a German World War I reconnaissance aircraft * Bavarian C VI, an 1899 German steam locomotive model * Chevrolet Corvette C6, a 2005 sports car * Cierva C.6, a 1924 Spanish autogyro * Citroën ...

Keratin 6C
Keratin 6C (protein name K6C; gene name ''KRT6C''), is a type II cytokeratin, one of a number of isoforms of keratin 6 encoded by separate genes located within the type II keratin gene cluster on human chromosome 12q. This gene was uncovered recently by the Human Genome Project and its expression patterns in humans remains unknown. Keratins Keratins are the intermediate filament proteins that form a dense meshwork of filaments throughout the cytoplasm of epithelial cells. Keratins form heteropolymers consisting of a type I and a type II keratin. Keratins are generally expressed in particular pairs of type I and type II keratin proteins in a tissue-specific and cellular differentiation-specific manner. The keratin proteins of epithelial tissues are commonly known as "keratins" or are sometimes referred to as "epithelial keratins" or "cytokeratins". The specialized keratins of hair and nail are known as "hard keratins" or " trichocyte keratins". Trichocytes are the specializ ...
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Stalag VI-C
Stalag VI-C was a World War II German POW camp located 6 km west of the village Oberlangen in Emsland in north-western Germany. It was originally built with five others in the same marshland area as a prison camp (''Straflager'') for Germans. From 1939 till 1945 the Oberlangen camp was a Prisoner of War camp. Administratively, the camp was initially subordinate to Stalag VI-B Versen. However, with time it became the largest of a group of camps located at Alexisdorf, Dalum, Groß-Fullen, Groß-Hesepe, Neu-Versen, Wesuwe, Wietmarschen and Oberlangen, all collectively designated as Stalag VI-C/Z since 13 May 1942. The headquarters of the entire POW camp complex was located at Bathorn. Following the fall of the Warsaw Uprising of 1944, the Stalag VI-C Oberlangen became the only POW camp in Nazi-occupied Europe for female prisoners of war. An exhibition of this and the other 14 Emsland camps 1933-1945 was shown in the Documentation and Information Center (DIZ) Emslandlage ...
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Carbon
Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—its atom making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust. Three isotopes occur naturally, C and C being stable, while C is a radionuclide, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity. Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Carbon's abundance, its unique diversity of organic compounds, and its unusual ability to form polymers at the temperatures commonly encountered on Earth, enables this element to serve as a common element of Carbon-based life, all known life. It is the second most abundant element in the human body by mass (about 18.5%) after oxygen. Th ...
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Time-Flight
''Time-Flight'' is the seventh and final serial of the 19th season of the British science fiction television series '' Doctor Who'', which was first broadcast in four twice-weekly parts on BBC1 from 22 to 30 March 1982. The serial is set at the site of Heathrow Airport in the 1980s and 140 million years ago. In the serial, the alien time traveller the Master (Anthony Ainley) attempts to use the power of the psychic gestalt being the Xeraphin to power his damaged time machine. Plot The Fifth Doctor, Nyssa, and Tegan, still mourning the loss of their former companion Adric, arrive at Heathrow and learn from Department C19 that one of their Concordes mysteriously vanished just before landing. Using another Concorde with the TARDIS aboard, the Doctor and his companions join Captain Stapley and his crew to fly the same landing path. They appear to land at Heathrow, but the Doctor determines they have flown through a time corridor to 140 million years in the past, the illusion ...
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