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User:Grantus4504

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About me

My name is Grant Sherman. I have a BSc in Astrophysics from Cardiff University where my tutor Mike Edmunds taught me about the interstellar medium.

I have an MSc in Analytical Biology from Warwick University. This was a course designed by Prof Jacqueline McGlade and included lectures from E. J. Milner-Gulland, Graham Medley and Jack Cohen. The course introduced me to the ideas of Jurgen Habermas, John Dryzek, Ulrich Beck

From 2006 to 2019, I lived on Lundy, a small island in the Bristol Channel, UK. I worked in the Marisco Tavern, but my main reason for living there was the seabirds. Lundy is home to three species of auks, the Common Guillemot, the Razorbill and the Atlantic Puffin. Manx Shearwaters and European Shags also breed on the island as well as four species of Gull: Great Black-backed Gull, Lesser Black-backed Gull, Herring Gull, and Black-legged Kittiwake.

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Ancient DNA

I've just done a DNA test and had comparisons with DNA from archaeological individuals. I'm related to: Ötzi the Iceman, a Neolithic farmer who was buried in Poulnabrone dolmen, Co Clare, Ireland, and an Iron age Durotriges male buried at Winterborne Kingston.

Are there sharks on Europa?

Asteroids and Meteorites

Extra-terrestrial occurrence

Extra-terrestrial nicotinic acid and nicotinamide have been found in carbonaceous chondrite meteorites[1] and in sample-returns from the asteroids 162173 Ryugu[2][3] and 101955 Bennu.[4]

Extra-terrestrial vitamin B3 vitamers have been found in carbonaceous chondrite meteorites and in sample-returns from the asteroids 162173 Ryugu and 101955 Bennu.

More information Asteroid, Nicotinic acid ...
Vitamin B3 vitamers from extra-terrestrial sources
AsteroidNicotinic acidNicotinamide
101955 Bennu[4]0.43 nmol/gnot reported
162173 Ryugu0.40 nmol/g[4], 99ppb[3]not detected[3]
MeteoriteNicotinic acidNicotinamide
Orgueil[3]715ppb214ppb
Murray[1]626ppb65ppb
Murchison2.4 nmol/g[4], 190ppb[1]16ppb[1]
Tagish Lake[1]108ppb5ppb
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Carbonaceous chondrites

75%-99% of the organic carbon in CI and CM carbonaceous chondrites is an insoluble complex material[5]. That is similar to the description for kerogen. A kerogen-like material is also in the ALH84001 Martian meteorite (an achondrite).

The CM meteorite Murchison has over 96 extraterrestrial amino acids and other compounds including carboxylic acids, hydroxy carboxylic acids, sulphonic and phosphonic acids, aliphatic, aromatic and polar hydrocarbons, fullerenes, heterocycles, carbonyl compounds, alcohols, amines and amides.

[6]

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