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F waves

F waves

The waves of atrial flutter usually best seen in ecg leads 2, 3, and avf. (a small f indicates atrial fibrillation).

Synonym: fibrillary waves, fibrillatory waves, flutter-fibrillation waves.


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Newbie question about the first life

... in the atmosphere (lightning) helped to put together (also UV radiation, radiation issuing from radioactive elements in exposed rocks and shock waves caused by lightning and meteors, but to a much lesser extent). Monomers started to come together and assemble polymers. These were 1) nucleic ...

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by piscilactovegetarian
Tue Feb 25, 2014 10:21 am
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 710

Re: How Does Natural Selection Create Ordered Variation?

Try this: A dynamic filter applied to a DINAMIC random input. So it'd be sort of like intersecting waves. They are just as likely to negate as to add up. The law of averages dictates that natural selection can't make any progress then, doesn't it? Think about it this way: ...

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by Cat
Sat Jan 18, 2014 4:59 pm
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 1391

How Does Natural Selection Create Ordered Variation?

... the environment could change so that's a bad thing, negating the effect of the previous beneficial mutation. So it'd be sort of like intersecting waves. They are just as likely to negate as to add up. The law of averages dictates that natural selection can't make any progress then, doesn't it? ...

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by Doom
Wed Jan 15, 2014 6:18 am
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 1391

Out of Africa Vs. Multiregional theory

... Personally I am totally indifferent to where humans came from but I am curious, I would like to know... Apart from that, it is possible that many waves of migration mixed with each other after coming out of Africa... Best regards

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by Poltiser
Thu Nov 21, 2013 9:36 am
 
Forum: Evolution
Topic: Out of Africa Vs. Multiregional theory
Replies: 2
Views: 1056

Re: What is the purpose of life?

Life is a process, a propagation of self similar patterns. It has no more purpose than ocean waves. To crush your enemies, see them driven before you, and to hear the lamentation of their women? That is best.

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by temper
Sun Oct 13, 2013 11:45 am
 
Forum: General Discussion
Topic: What is the purpose of life?
Replies: 4
Views: 1376
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