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Author Topic:   Links for the Creation/Evolution Controversy (not a debate topic)
RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 8 of 147 (491363)
12-14-2008 10:42 PM
Reply to: Message 7 by NosyNed
12-14-2008 3:43 PM


Re: Left Handed from Space
Did not find any with a quick google (kept turning up different versions of the same article).

Did find link of interest this Confirmed - Genetic Material In Meteorites Is Extraterrestrial In Origin:

quote:
The materials they have found include the molecules uracil and xanthine, which are precursors to the molecules that make up DNA and RNA, and are known as nucleobases. The team discovered the molecules in rock fragments of the Murchison meteorite, which crashed in Australia in 1969.

Enjoy.


we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


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This message is a reply to:
 Message 7 by NosyNed, posted 12-14-2008 3:43 PM NosyNed has replied

Replies to this message:
 Message 9 by NosyNed, posted 12-14-2008 10:56 PM RAZD has replied

  
RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 10 of 147 (491407)
12-15-2008 6:30 PM
Reply to: Message 9 by NosyNed
12-14-2008 10:56 PM


bingo
Found some more interesting articles

http://www.astrobio.net/news/article253.html

Talks about measuring the age of organic matter by the ratio of D and L amino acids (over time molecules convert L to D and D to L and end up in equilibrium ...)

http://www.rockefeller.edu/pubinfo/news_notes/rus_012805_h.php

Talks about a Potassium filter that needs D and L amino acids but uses glycerin as an ambidextrous one instead: "Glycine’s being the only natural amino acid that can play this role helps explain why the potassium ion filters of all organisms are identical."

the google "clip" on this site is intriguing, but requires AAAS sign in to access the article (abstract doesn't mention it)
http://www.sciencemag.org/cgi/content/summary/295/5563/2205?ck=nck
"But many bacteria and fungi can turn to an alternative system that allows ... it a specific left- or right-handed amino acid or some other compound--to a ..."

and I love these little guys
http://en.wikipedia.org/wiki/Magnetotactic_bacteria
biological compass bacteria?

FINALLY:

Novel neurotransmitter overturns laws of biology, offers potential for stroke treatment

quote:
The neurotransmitter is an amino acid called D-serine. It's odd, Snyder says, because it differs in structure from any known molecule in its class found in mammals and other higher animals. D-serine is what chemists call a right handed amino acid. Normally, amino acids have atoms that extend from the left side of the molecule. These L-amino acids, as they're called, are the rule in vertebrates, whose biochemistry is set up to deal with these forms.

Some primitive organisms, however, notably bacteria, have a mixture of both L-amino acids and their mirror images called D-amino acids. But to find a D-amino acid in humans, Snyder says, "is unprecedented;" it's the equivalent of finding a Pterodactyl in your local pet shop.

Moreover, unlike dopamine, serotonin or other traditional nerve transmitters, D-serine isn't secreted at nerve cell endings in the brain. Instead, it comes from adjacent cells called astrocytes, which enclose nerve cells in the brain's gray matter like a glove.

The current study adds conclusive evidence to the idea that D-serine -- released from astrocytes -- activates receptors on key nerve cells in the brain. Activating these receptors, called NMDA receptors, has long been linked with learning, memory and higher thought. NMDA receptors are also known culprits in stroke damage in the brain, and have become a focus for anti-stroke research.


So they do exist, and D-amino acids are used (a) by some bacteria and (b) (at least one anyway) by humans.

Enjoy.


we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


• • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •

This message is a reply to:
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Replies to this message:
 Message 11 by Adminnemooseus, posted 12-16-2008 2:42 PM RAZD has seen this message

  
RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 44 of 147 (528334)
10-05-2009 8:19 PM
Reply to: Message 43 by Minnemooseus
10-05-2009 7:56 PM


Re: Conservapedia is going to edit the liberal bias out of the Bible
It will be interesting to see if it stays up, or whether it is deemed to be a liberal hack parody of their "position/s"

This message is a reply to:
 Message 43 by Minnemooseus, posted 10-05-2009 7:56 PM Minnemooseus has seen this message

Replies to this message:
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RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 71 of 147 (719410)
02-13-2014 11:17 PM
Reply to: Message 70 by Faith
02-13-2014 10:30 PM


Re: "All Science is Historical Science"
... But apparently nobody wants to recognize what this controversy is REALLY about, you'd rather define it out of existence, makes you all feel warm and fuzzy.

Then answer Message 116 -- this is a non-debate thread (see title)


we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


• • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •

This message is a reply to:
 Message 70 by Faith, posted 02-13-2014 10:30 PM Faith has taken no action

  
RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 74 of 147 (728253)
05-26-2014 9:18 AM
Reply to: Message 73 by Minnemooseus
05-25-2014 6:27 PM


Snelling concedes age
Adding Snelling Concedes Age of Earth to Age Correlations and An Old Earth, Version 2 No 1

Thanks


we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


• • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •

This message is a reply to:
 Message 73 by Minnemooseus, posted 05-25-2014 6:27 PM Minnemooseus has seen this message

  
RAZD
Member (Idle past 632 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 85 of 147 (737864)
10-01-2014 9:09 AM
Reply to: Message 84 by Tali_Zorah
09-30-2014 9:37 AM


age of the earth
Welcome to the fray Tali_Zorah

But at the Institute for Creation Research in northwest Dallas, a group of nine Ph.D.s from places like Harvard and Los Alamos National Laboratory say all that molecules-to-man stuff is nonsense. And they’re out to prove it.

Let us know when they have results.

The universe is not 13.8 billion years old (as astrophysicists calculate by measuring the rate of cosmic expansion), the earth is not 4.5 billion years old (as geologists conclude by using radioisotope dating on ancient rocks), and humans did not split from chimpanzees and gorillas about 4 million to 7 million years ago (as suggested by genetics and the fossil record).

If you want to discuss the age of the earth see Age Correlations and An Old Earth, Version 2 No 1 (this is not a discussion thread).

Enjoy

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we are limited in our ability to understand
by our ability to understand
RebelAmerican☆Zen☯Deist
... to learn ... to think ... to live ... to laugh ...
to share.


• • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •

This message is a reply to:
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