Dictionary » A » Activation

Activation

Activation

(Science: radiobiology) activation occurs when a particle interacts with an atomic nucleus, shifting the nucleus into an unstable state, and causing it to become radioactive.

in fusion research, where deuterium-tritium is a common fuel mixture, the neutron released when (D _ T) combine to form (4He _ n) can activate the reactor structure. In this case the 4He is inert, the neutron sticks to another nucleus, and the neutron _ nucleus reaction creates an actvation product. Sometimes called radioactivation.

See: activation product, activation analysis.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Hyperadrenergic POTS

... in the norepinephrine transporter (NET). The resultant inability to adequately clear norepinephrine produces a state of excessive sympathetic activation in response to a variety of sympathetic stimuli. While rare, this mutation has taught us much about the importance of a functional NET. Although ...

See entire post
by rmorrison
Wed Mar 19, 2014 5:38 pm
 
Forum: Human Biology
Topic: Hyperadrenergic POTS
Replies: 0
Views: 51

Re: Increase in free energy in glycolysis

... increase. The ATP usage in the two steps: hexokinase making glucose-6-phosphate and PFK1 making Fructose-1,6-Bisphosphate is made to overcome the activation energy of the subsequent step. I don't know what you understanding of biochemistry is and if that concept of free energy and activation energy ...

See entire post
by daniel.kurz
Wed Feb 05, 2014 3:03 am
 
Forum: Molecular Biology
Topic: Increase in free energy in glycolysis
Replies: 3
Views: 639

Re: Enzymes and activation energy.

QUESTION: Explain how enzymes lower activation energy

See entire post
by misunderstandingbio
Sun Sep 15, 2013 3:37 pm
 
Forum: Molecular Biology
Topic: Enzymes and activation energy.
Replies: 5
Views: 35974

Fail to see under physiological stimulation

yes i am sure it was expressed and i also saw the activation of Src under PDGF stimulation detecting with pY416-Src antibody

See entire post
by kingsupercat
Wed Aug 28, 2013 4:34 am
 
Forum: Cell Biology
Topic: Fail to see under physiological stimulation
Replies: 6
Views: 992

How can depolarization activate VGCC and TRPM5

... activates VGCC --> Ca2+ increases --> opens TRPM5 channels to let more Ca2+ in. But my questions are: 1. What is the mechanism behind the activation of VGCC? 2. How can TRPM5 channels open (how can they sense that they have to open)? //Jessie

See entire post
by Jessiyoo
Wed Jul 31, 2013 4:45 pm
 
Forum: Molecular Biology
Topic: How can depolarization activate VGCC and TRPM5
Replies: 0
Views: 394
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 6,519 times. 
What links here | Related changes | Permanent link