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Aug
25
awarded  Good Answer
Jun
19
awarded  Enlightened
Jun
7
comment Understanding Membrane / Resting Potential from the perspective of ions?
The resting potential is only validly called an equilibrium potential in a system containing only one ion species. Of course, cell environments are composed of several ions so the resting potential is not described by any equilibrium potential, because (as you say) the system is at steady-state rather than equilibrium. A more general term is "reversal potential" which describes the potential at which net current switches sign (e.g., inward to outward). The concept of reversal potential simplifies to a Nernst/equilibrium potential in single ion cases, but also covers multiple ion cases.
Jun
6
revised How and where, in the human brain, are memories stored?
added some references
Jun
6
revised Understanding Membrane / Resting Potential from the perspective of ions?
Added neuroscience tag
May
9
comment Why do neurons die so quickly (relative to other cells) when deprived of oxygen?
+1. Neurons use a lot of active transport pumps that consume ATP to maintain ion gradients and to shuttle neurotransmitters.
May
9
answered Could we transmit smells electronically?
Apr
28
awarded  Nice Answer
Apr
26
answered Can one dendrite pass through another?
Apr
24
comment What is meant in biology by the term “evolved”?
@KonradRudolph I agree with you in general, and I was not advocating using "more complex" when comparing whole organisms. But I stand by using "more complex" when discussing specific features. It's true that complexity is a flexible ill-defined concept, but at least a speaker can specify how they are using the phrase. I think it's important to have some way to express the concept of relative complexity, which is meaningful if defined for a particular domain/feature.
Apr
24
comment What is meant in biology by the term “evolved”?
@KonradRudolph Do you mean that "more complex" has the same problems as "more evolved"? Or rather that it has the same problems as "more primitive"? Can you expand? What phrase do you prefer? I think "more complex" is very near to what people actually want to say when they use the term "more evolved." It does come with a bit of a value judgment about what complexity means, but I have a hard time thinking of a phrase that has much less baggage. If one is careful to specify the dimension, I think it can be reasonable to discuss the relative complexity of different systems.
Apr
23
revised What is meant in biology by the term “evolved”?
improved wording
Apr
13
revised Is it necessary to conduct a power analysis before beginning an experiment?
added 23 characters in body
Apr
13
revised Is it necessary to conduct a power analysis before beginning an experiment?
added 204 characters in body
Apr
12
revised Is it necessary to conduct a power analysis before beginning an experiment?
added 80 characters in body
Apr
12
answered Is it necessary to conduct a power analysis before beginning an experiment?
Apr
5
comment Soma-soma paired neurons
Exactly right, they prepare (or setup) the cells in a particular way so that they can study them later. For instance, here they are removing the neurons from the snail and putting them together in a dish. Then they add a solution that encourages the synapse to form. As you might imagine, any given preparation will be good for investigating some things but bad for other things. A major part of experimental design in biology is choosing the right "preparation."
Apr
5
comment Brain + ethanol experiment suggestions needed
@HarroldCavendish: Can you explain more about what this experiment is for? Are you trying to do a PSA about the dangers of alcohol? What sort of experimental background do you have?
Apr
5
comment Brain + ethanol experiment suggestions needed
+100 for noting the requirement of a live animal and how non-trivial the proposed experiments are
Apr
5
answered Soma-soma paired neurons