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Threshold


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Aneuploidy threshold

... group the cell lines based on high or low chromosomal instability as indicated by their average ploidy value. My question is this: what 'threshold' ploidy value would be considered aneuploidy? For example, I know that a value of 2 means diploid, but is a value of 2.3, 2.4 or even 2.6 ...

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by kn83
Mon Mar 16, 2015 11:38 pm
 
Forum: Cell Biology
Topic: Aneuploidy threshold
Replies: 0
Views: 61

Re: Depolarization = ion channel opening?

I think you are correct (or more precisely when the Na+ channels open since the K+ open later). There is a threshold voltage that switches the state of what I found to be a flip-flop. The circuit is also called a "monostable multivibrator".

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by GaryGaulin
Thu Jan 08, 2015 6:01 am
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 660

Depolarization = ion channel opening?

Hi huys, I have a problem with this statement: "Action potentials are formed when a stimulus causes the cell membrane to depolarize past the threshold of excitation, causing all sodium ion channels to open." Isn't the cell membrane depolarized BECAUSE the ion channels open?

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by autumnsphere
Wed Oct 29, 2014 2:18 pm
 
Forum: Cell Biology
Topic: Depolarization = ion channel opening?
Replies: 1
Views: 660

Effects of variation in Flicker Fusion Thresholds (vision)

... flies when you're having fun, a watched pot never boils, and so on. Of particular interest to me is vision and in particular the flicker fusion threshold (FFR); the frequency at which an intermittent stimulus appears continuous. According to the following article this threshold differs from ...

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by NMLevesque
Sat Nov 23, 2013 6:47 pm
 
Forum: General Discussion
Topic: Effects of variation in Flicker Fusion Thresholds (vision)
Replies: 0
Views: 2153

question about G418 sceening test

Hi, I'm quite new to cell culture experiment, so I'm looking for someone who can help me out here. I'm trying to determine a threshold concentration for G418 screening of stable transfected cells (Huh-7). I start with a T25 flask of Huh-7 about 80% confluence, and passed it to a 6 well ...

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by cavaliersun2003
Mon Nov 11, 2013 7:28 am
 
Forum: Cell Biology
Topic: question about G418 sceening test
Replies: 0
Views: 1592
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