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A wave

A wave

The initial negative deflection in the electroretinogram, presumably reflecting retinal photoreceptor activity, an atrial deflection in an electrocardiogram recorded from within the atrium of the heart, the first positive deflection of the atrial and venous pulses due to atrial systole.


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Springhill Group - Asian frogs becoming extinct, biologists

... disease, pollution and other factors – is hard to quantify, but scientists fear the result will be disastrous. Amphibians have been suffering a wave of devastation all around the world, in part because of the spread of the fungal diseaseBatrachochytrium dendrobatidis, known as BD or chytrid ...

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by justinbibe88
Wed Dec 12, 2012 8:47 am
 
Forum: Ecology
Topic: Springhill Group - Asian frogs becoming extinct, biologists
Replies: 0
Views: 331

Re: Sound and how the brain reacts to it

... in the music business and whilst listening to certain music, or a chord can send shivers down my spine, they do not generally give me this little waves of pleasure that run across my neck and head in the same way. I work in an office and at the moment the sounds that set me off on a little wave ...

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by Steviep1969
Mon Nov 12, 2012 12:07 pm
 
Forum: Human Biology
Topic: Sound and how the brain reacts to it
Replies: 81
Views: 77146

Brain Waves in Fetus (measurable brain waves)

When does brain wave activity begin in the fetus? I have read that "measurable" brain wave activity begins at 25 weeks, but I found a 1984 article on nih.gov that says it's 8 weeks, which is when the brain and spine are ...

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by wildfunguy
Sun Nov 04, 2012 4:03 pm
 
Forum: Human Biology
Topic: Brain Waves in Fetus (measurable brain waves)
Replies: 1
Views: 501

Re: connexins & pannexins

... pannexins form the non-junctional channels that play paracrine roles by releasing ATP and, thus, modulating the range of the intercellular Ca2+-wave transmission between astrocytes in culture.

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by brad000123
Sat Oct 20, 2012 11:54 am
 
Forum: Molecular Biology
Topic: connexins & pannexins
Replies: 6
Views: 4037

receiving electromagnetism

... cell growth inhibition, protein misfolding, and DNA breaks. The effect of EMF exposure on reproductive function differs according to frequency and wave, strength (energy), and duration of exposure. In the present review, the effects of EMFs on reproductive function are summarized according to the ...

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by jinx25
Sun Oct 07, 2012 2:33 pm
 
Forum: Cell Biology
Topic: receiving electromagnetism
Replies: 4
Views: 1197
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