GNA

GNA, gna or similar may refer to:

Glycol nucleic acid

Glycol nucleic acid (GNA) is a polymer similar to DNA or RNA but differing in the composition of its "backbone". GNA is not known to occur naturally; they are synthesized chemically.

The 2,3-dihydroxypropylnucleoside analogues were first prepared by Ueda et al. (1971). Soon thereafter it was shown that phosphate-linked oligomers of the analogues do in fact exhibit hypochromicity in the presence of RNA and DNA in solution (Seita et al. 1972). The preparation of the polymers was later described by Cook et al. (1995, 1999) and Acevedo and Andrews (1996). The GNA-GNA self-pairing described by Zhang and Meggers is however novel, and the specificity of interaction well-demonstrated.

DNA and RNA have a deoxyribose and ribose sugar backbone, respectively, whereas GNA's backbone is composed of repeating glycol units linked by phosphodiester bonds. The glycol unit has just three carbon atoms and still shows Watson-Crick base pairing. The Watson-Crick base pairing is much more stable in GNA than its natural counterparts DNA and RNA as it requires a high temperature to melt a duplex of GNA. It is possibly the simplest of the nucleic acids, so making it a hypothetical precursor to RNA.

Gná and Hófvarpnir

In Norse mythology, Gná is a goddess who runs errands in other worlds for the goddess Frigg and rides the flying, sea-treading horse Hófvarpnir (Old Norse "he who throws his hoofs about", "hoof-thrower" or "hoof kicker"). Gná and Hófvarpnir are attested in the Prose Edda, written in the 13th century by Snorri Sturluson. Scholarly theories have been proposed about Gná as a "goddess of fullness" and as potentially cognate to Fama from Roman mythology. Hófvarpnir and the eight-legged steed Sleipnir have been cited examples of transcendent horses in Norse mythology.

Attestations

In chapter 35 of the Prose Edda book Gylfaginning, the enthroned figure of High provides brief descriptions of 16 ásynjur. High lists Gná thirteenth, and says that Frigg sends her off to different worlds to run errands. High adds that Gná rides the horse Hófvarpnir, and that this horse has the ability to ride through the air and atop the sea. High continues that "once some Vanir saw her path as she rode through the air" and that an unnamed one of these Vanir says, in verse:

Sk8 (TV series)

Sk8 is a half-hour teen drama that aired on NBC's TNBC Saturday morning programming block from October 6, 2001 to January 5, 2002 with 13 episodes produced. The show continued in reruns until TNBC's dissolution in September 2002.

The series was co-created by Thomas W. Lynch, who also co-created Just Deal, TNBC's first single-camera format series, with Sk8 becoming the second series on the lineup to be shot in the same format.

Premise

The show featured storylines concerning the life of an aspiring pro skater and his relationships with a motley crew of friends. The show featured guest appearances by professional skateboarders and guerrilla film and video shooting styles.

Cast

Guest stars

Skate of Marrister

Coordinates: 60°21′22″N 1°01′22″W / 60.355982°N 1.022866°W / 60.355982; -1.022866

The Skate of Marrister is a flat ledge that extends about 300 yards (270 m) from the western shore of Whalsay, in the Shetland islands of Scotland. It is slightly more than 1 mile (1.6 km) north-north-west from Symbister Ness off the village of Marrister, in Linga Sound. At low tide the ledge rises 5 feet (1.5 m) above the water. There is a risk that the strong tide in Whalsay Sound (Linga Sound) will carry a boat onto the Skate. There is a minor light on the Skate with a nominal range of four miles, flashing green every six seconds.

Piltock may be caught around the skate.

References

Citations

Sources

Skate (video game)

Skate (marketed as skate.) is a skateboarding video game developed by EA Black Box for the Xbox 360 and PlayStation 3. It was released in North America on September 17, 2007 for the Xbox 360 and September 24, 2007 for the PlayStation 3 and in Europe on September 28, 2007 for the Xbox 360 and October 5, 2007 for the PlayStation 3. As of February 1, 2008, Skate has outsold the 2007 skateboarding game Tony Hawk's Proving Ground by a ratio of almost 2 to 1 on seventh generation video game consoles.

Two sequels, Skate 2 and Skate 3 have been released for the Xbox 360 and PlayStation 3, as well as Skate It, a spin-off for the Wii, Nintendo DS, and iOS platforms.

Plot

You are a skater who is hit by a bus and is taken to hospital. You get out and get a photo in the skateboard mag at the elementary school . You then do a demo at LL Regs skate park and win. After, you get a shop sponsor at LL Regs skate shop and do more photos, video parts and contests. Eventually, you get a board sponsor and do more photos, video parts and contests. Then, you get wheel, truck and shoe sponsorships and got to the x-games after getting on the cover of the skateboard mag. With more photos with Thrasher skateboard mag, you get 'skater of the year' and you reach the top.

Stop

Stop may refer to:

Film

Music

Albums

Songs