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visits member for 2 years, 4 months
seen Apr 16 at 17:37

Apr
28
comment Does sexual arousal inhibit functions of prefrontal cortex in human females as well as males?
I have never seen this and have a very hard time believing it. I have a feeling it's a rephrasing of the old canard that men thing about sex every 7 seconds.
Dec
28
comment What kind of event would cause the current Mitochondrial Eve to be replaced by a new one?
An mathematical solution to this question is the Galton-Watson Process. It is formulated in terms of surnames and this situation is very similar. en.wikipedia.org/wiki/Galton%2DWatson_process
May
29
comment Reproduction and defecation
@Kevin You're right, fixed it
Apr
28
comment Why do the brains of cocaine-users shrink faster than the brains of non-cocaine users?
Could it also not be related to non-cocaine lifestyle changes, such as diet?
Mar
13
comment Is there a biological basis for different accents?
Your question is (badly) based on the assumption that there is something out there with no accent. EVERYONE has an accent, just like everyone has a fingerprint.
Feb
14
comment Mitosis in human body
But from how I understand it, blood cells are not really cells in the sense that they are just bags of haemoglobin without the standard internal organelles found in cells.
Feb
3
comment Is Behe's experiment (evolving the bacterial flagellum) plausible in the lab?
Behe has no concept of the time scales involved: (Douglas Adams, replace space with time)Space is big. You just won't believe how vastly, hugely, mind- bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.
Jan
20
comment What is the prehistory of amino acids in cells?
This is an interesting paper. I've not picked through it in detail, but it seems to assume we started with the triplet code immediately and did not pass through a doublet code as other people have proposed ( imb-jena.de/~sweta/genetic_code_and_evolution/evolution.html )
Jan
18
comment What is the prehistory of amino acids in cells?
@shigeta: check the paper I've added as a reference
Jan
15
comment What is the smallest number of amino acids required for life?
@J.M. Yes, that's what I mean.
Jan
6
comment Why are there nail growth differences between humans and other mammals?
@Jay, Maxim : I am not convinced hair has informational feedback. I think it's more that the skin provides the feedback e.g. heat retention information, or stress info due to the weight of the hair.
Jan
5
comment Could Junk DNA be used as a Turing Machine by nature?
You understandably misunderstood the question because some moron has hijacked my question and changed it into something completely different. If you look at the comments under the question and the high rated answers you see they are discussing my original question, not the one you saw. I've tried to edit it back to what I asked.
Jan
5
comment Could Junk DNA be used as a Turing Machine by nature?
My question wasn't so much using a dna strip in place of the paper for a turing machine. That's not very interesting. I am asking if nature already has computation machines in a cell, which might help explain some of the non-coding DNA
Jan
5
comment Could Junk DNA be used as a Turing Machine by nature?
"Junk" here has a specific meaning. And by the way, its usually written "Garbage in, garbage out"