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location Canary Islands
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visits member for 2 years, 10 months
seen 2 days ago

Research astrophysicist. Particularly interested in astrobiology, paleobiology, extremophiles, origin of life studies and studies of ageing. Working toward a biochemistry degree when I have time.


Aug
12
awarded  Nice Answer
Jul
21
comment Do trees age on a microscopic level?
Thanks @Luke. Looks like a good read.
Jul
21
comment Do trees age on a microscopic level?
@Luke do you have a ref. for the second review you mention? The Cell website is down.
Jul
21
comment Do trees age on a microscopic level?
Very interesting answer Luke!
Jul
20
comment How did the nucleobases in the Murchison meteorite form?
But certainly the importance of dust should not be underestimated!
Jul
20
comment How did the nucleobases in the Murchison meteorite form?
I am not sure that I would say that we are left to speculation. The fact that these chemicals are racemic would suggest that they were formed abiotically. This being the case, we can probably get to understand the chemistry which should be pretty basic.
Jul
20
comment How did the nucleobases in the Murchison meteorite form?
@KonradRudolph The argument about reducing vs non reducing atmosphere goes on, but it probably was not as reducing as Urey Miller assumed. Not to take away from their very important contribution however. Regarding black smokers, yes they are favourite candidates for early life, but their chemical environments are not much like Urey Miller either!
Jul
20
comment Does stress physically age our body?
I didn't say there was a contradiction, but as you have just said it a clearly more complicated than saying stress=bad.
Jul
20
comment How did the nucleobases in the Murchison meteorite form?
See my response below. The problem with Urey-Miller is that they assumed a strongly reducing environment which probably was not the case on the early Earth thereby giving them very high yields of lovely organic stickies.
Jul
20
comment Does stress physically age our body?
Not sure that I am entirely convinced by this. Some studies have shown (looking for refs...) that stress can be an important stimulant of the immune system - i.e. hormesis.
Jul
20
revised How did the nucleobases in the Murchison meteorite form?
added 69 characters in body
Jul
20
answered How did the nucleobases in the Murchison meteorite form?
Jul
9
comment What is the relationship between migraines and histamine?
This seems to suggest that some sort of antihistamine would be effective in treating this class of migraine. Is that right?
Jul
8
asked What is the relationship between migraines and histamine?
Jul
2
awarded  Good Answer
Jul
1
accepted What is the most heat-tolerant organism?
Jul
1
revised Is there a reason why human eyesight and plants make use of the same wavelength of light?
added 28 characters in body
Jul
1
comment How did the first self replicating organism come into existence?
No, I just mean that how are we really ever going to know what the exact sequence of events was? I suppose it depends whether you are a contingency or convergence type!
Jun
30
comment Why do ants live so long?
Nice answer here.
Jun
30
comment How do trees manage to grow equally in all directions?
Good answer. Upvotes all round.