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Work

work

(Science: chemistry) energy transferred by mechanical means, force acting over a distance. For chemical systems the sign for work is positive, if work is done on the system and negative, if work is done by the system. An example is the expansion of a gas against the external, atmospheric pressure. In this case work is negative, because it is done by the gas which represents the system.


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Hyperadrenergic POTS

... more common term used now is Postural Tachycardia Syndrome, or POTS. The increase in heart rate may be a sign that the cardiovascular system is working hard to maintain blood pressure and blood flow to the brain. This results in a lack of blood flow to the brain. Hypovolemia is an abnormal decrease ...

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by rmorrison
Wed Mar 19, 2014 5:38 pm
 
Forum: Human Biology
Topic: Hyperadrenergic POTS
Replies: 0
Views: 49

licorice root a stress reliever?

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by wildfunguy
Wed Mar 12, 2014 11:09 pm
 
Forum: Human Biology
Topic: licorice root a stress reliever?
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Views: 71

Books from which these pictures were taken?

The second link didn't work, so I removed it. Anyway, those pictures can be in any molecular/cellular biology textbook. But you can try picture search.

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by JackBean
Mon Mar 10, 2014 3:42 pm
 
Forum: Cell Biology
Topic: Books from which these pictures were taken?
Replies: 1
Views: 404

Re:

... physiological sense to me. Strong emotions are immediate, accompanied by an adrenalin rush. Think of horror films. In every field there is easy work/activity and difficult work/activity. In mathematics there is easy mathematics and difficult mathematics. Everyone can add 2+4 within microseconds. ...

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by sushil_yadav
Sat Mar 08, 2014 4:20 am
 
Forum: Ecology
Topic: Industrial Society Destroys Mind and Environment
Replies: 45
Views: 32851

Industrial Society Destroys Mind and Environment

... This does not make physiological sense to me. Strong emotions are immediate, accompanied by an adrenalin rush. Think of horror films. They always work best if the shock is unexpected and happens quickly. The physiology of fight flight reaction is very old and I do not think that this could be ...

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by animartco
Fri Mar 07, 2014 1:58 pm
 
Forum: Ecology
Topic: Industrial Society Destroys Mind and Environment
Replies: 45
Views: 32851
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