Dictionary » R » Repulsion

Repulsion

repulsion

1. The act of repulsing or repelling, or the state of being repulsed or repelled.

2. A feeling of violent offence or disgust; repugnance.

3. (Science: physics) The power, either inherent or due to some physical action, by which bodies, or the particles of bodies, are made to recede from each other, or to resist each other's nearer approach; as, molecular repulsion; electrical repulsion.

Origin: L. Repulsio: cf. F. Repulsion.


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Re: Enzymes and activation energy.

... topology of the active site. Areas of higher or lower electron density relative to the nuclear charge in that region lead to binding or repulsion of substrate molecule(s) and make groups more or less reactive. Changing local electron density directly affects reaction mechanisms, which ...

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by jonmoulton
Wed Jul 08, 2009 3:25 pm
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 4
Views: 417

Re: Any SOLID arguments against evolution?

... could be arranged as many times as there are atoms in the universe? 90% of arrangements would not work because of electrostatic attraction and repulsion so your left with say 10% of the arrangements and all the time in the world... Also on googling "the hemoglobin number" the only ...

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by AFJ
Sun May 31, 2009 9:30 pm
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 106
Views: 16848

Re: Any SOLID arguments against evolution?

... could be arranged as many times as there are atoms in the universe? 90% of arrangements would not work because of electrostatic attraction and repulsion so your left with say 10% of the arrangements and all the time in the world... Also on googling "the hemoglobin number" the only ...

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by futurezoologist
Sun May 31, 2009 8:55 am
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 106
Views: 16848

The Fiber Disease

... Allen P Minton, NIDDK, National Institute of Health, Bethesda, MD 20892-0830, minton@helix.nih.gov Abstract Volume exclusion arising from steric repulsion provides an important driving force for macromolecular compaction and association in highly volume-occupied or 'crowded' solutions. The presence ...

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by Nadas Moksha
Fri Dec 22, 2006 6:54 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 749207

The Fiber Disease

... Pfeffer, who thought that bacteria could steer toward or away from a chemical source, coined the term “chemotaxis” to describe their attraction or repulsion. The role that flagella play in that response was examined in detail after dark-field condensers of high numerical aperture were developed, ...

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by Skytroll
Fri Feb 10, 2006 5:57 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 749207
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