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Negative phase

negative phase

The period during which the opsonic index is lowered following the injection of a vaccine.

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Action Potential

... of the action potential would be reduced by 50% 2. The falling phase would be more steep 3. The falling phase would have a steeper slope ... affected 6. The threshold for action potential generation would be more negative (hyperpolarized) 7. The nadir (most negative point) of the undershoot ...

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by sugars888
Thu Sep 29, 2011 5:12 am
Forum: Physiology
Topic: Action Potential
Replies: 5
Views: 7778

Theories - Origin of Life

... society" creative intelligence is no longer needed, subject to negative selection pressure and begins to regress. 30-50 thousand years happy ... narrowly stereotypical type of mind, where a return to the creative phase is almost impossible. A thousand years later, 200-300 changes in genetically ...

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by LeoPol
Mon Sep 05, 2011 8:29 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1137107

Neurobiology Questions

... mV outward D. 180 mV outward E. 0 mV because membrane potential is more negative than the equilibrium potential 3. In the resting, unstimulated neuron, ... normal inward direction. 5. In a typical neuron during the 'overshoot phase' of an action potential, for Na+: the electrical (electrostatic) ...

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by biol245
Fri Sep 24, 2010 2:29 pm
Forum: Cell Biology
Topic: Neurobiology Questions
Replies: 0
Views: 4403

Re: New perspectives in theory of evolution

... by logistic model 11 billions years takes evolution to reach biological phase, but only 3 to reach first primitive organisms, and only several hundred ... phase to scientific); but in second part of twentieth century arose negative phenomenon of demographic explosion. An accelerative demograpic ...

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by InsertFn
Mon May 18, 2009 8:37 pm
Forum: Evolution
Topic: New perspectives in theory of evolution
Replies: 4
Views: 8158

T cell differentiation

... continue to mature (including T cell receptor assembly, psoitive and negative selection, double CD4+/CD8+ phase etc.) and then move to the periphery, where the last maturation events take place. In ...

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by biohazard
Fri May 08, 2009 6:53 am
Forum: Human Biology
Topic: T cell differentiation
Replies: 16
Views: 35481
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