Gotha G.I
The Gotha G.I was a heavy bomber used by the Luftstreitkräfte (Imperial German Air Service) during World War I.
Design and development
In mid-1914, Oskar Ursinus, the founder and editor of the German flying magazine Flugsport, began designing a large twin-engine seaplane of unconventional configuration. While most biplane designs have the fuselage attached to the lower wing, Ursinus had a snub-nosed fuselage attached to the upper wing, and twin engine nacelles mounted on the lower one. The purpose of this arrangement was to allow the engines to be kept close together thereby minimizing asymmetrical thrust in the event of an engine failure, although Ursinus later also claimed that this design balanced out the lowering of the centre of pressure as speed increased, and minimised the drag on the upper wing caused by turbulence from the fuselage.
Ursinus was conscripted into the army on 1 August 1914 and little over a week later, presented his commanding officer, Major Helmut Friedel, with the seaplane design adapted into a Kampfflugzeug ("battle aircraft") intended for ground attack duties. Apart from the aerodynamic benefits claimed by Ursinus, the aircraft's unorthodox layout provided excellent views for the three crewmen and broad fields of fire for the gunner. The design also matched the specifications that the Idflieg had issued in March that year for a "Type III" large military aircraft, and Friedel ordered the construction of a prototype.
GI
GI or Gi may refer to:
Art and culture
Biology
Computing and technology
Places
Sport
Nór
Nór (Old Norse Nórr) or Nori is firstly a mercantile title and secondly a Norse man's name. It is stated in Norse sources that Nór was the founder of Norway, from whom the land supposedly got its name. (The name in fact probably derives from ‘nórðrvegr’, ‘northern way’.)
Chronicon Lethrens'
The Chronicle of Lejre (“Chronicon Lethrense”) written about 1170 introduces a primeval King Ypper of Uppsala whose three sons were Dan who afterwards ruled Denmark, Nori who afterwards ruled Norway, and Østen who afterwards ruled the Swedes. But the account then speaks only of the descendants of Dan.
Icelandic accounts
Source material
Parallel but not quite identical accounts of Nór the eponym of Norway appear in “Fundinn Nóregr” (‘Norway Found’), hereafter called F, which begins the Orkneyinga saga, and in Hversu Noregr byggðist (‘How Norway was Settled’), hereafter called B, both found in the Flatey Book.
About Thorri
King Thorri (Þorri 'frozen snow'), king of Finland, Kvenland and Götaland in B, was son of Snær ('Snow') the Old, a descendant of Fornjót (ruler of Finland and Kvenland in F). See Snær and Fornjót for further information. The name Þorri has long been identified with that of Þórr, the name of the Norse thunder god Thor, or thunder personified.
Gi alpha subunit
Gi alpha subunit (Gαi, or Gi/G0 or Gi protein) is a heterotrimeric G protein subunit that inhibits the production of cAMP from ATP. A mnemonic for remembering this subunit is to look at first letter (Gαi = Adenylate Cyclase inhibitor).
Receptors
The following G protein-coupled receptors couple to the Gi subunit:
Function
Gi mainly inhibits the cAMP dependent pathway by inhibiting adenylate cyclase activity, decreasing the production of cAMP from ATP, which, in turn, results in decreased activity of cAMP-dependent protein kinase. Therefore, the ultimate effect of Gi is the opposite of cAMP-dependent protein kinase.
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