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Electric field

Electric field

(Science: radiobiology) a property of a patch of space which causes the acceleration of electric charges located at that patch of space.

The acceleration is given by a = qE/m, where q is the charge, E the electric field vector, and m the mass of the particle. Electric fields are generated by the presence of charges and/or the time variation of magnetic fields

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Re: Homeostasis and cells

... "when concurrent to suprathreshold synaptic input, small electric fields can have significant effects on spike timing. For low-frequency fields, our theory predicts ...

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by seekeroftruth
Sat Dec 18, 2010 10:54 am
Forum: Cell Biology
Topic: Homeostasis and cells
Replies: 12
Views: 8867

DNA Supercoiling

... Which of the following DNA molecules would migrate the fastest in an electric field? A. 1000 bp linear fragment in a agarose gel B. 1000 bp linear fragment in a 0.7% agarose ...

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by Onlygoodinmath
Fri Oct 09, 2009 3:02 am
Forum: Genetics
Topic: DNA Supercoiling
Replies: 3
Views: 2310

Re: SDS-PAGE help please

... aminoacids can have negative/positive charge, so if you put it into electric field, it will move to electrode with the other charge. For this reason you add SDS, which ...

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by JackBean
Mon Sep 14, 2009 8:22 pm
Forum: Bioinformatics
Topic: SDS-PAGE help please
Replies: 6
Views: 14477

I just want to make sure that my hw problems are correct.thk

... lanes of a gel which has been prepared at a physiological pH. An electric field is applied such that the electrode placed near the origin of the gel is positive and ...

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by maya786
Tue Sep 16, 2008 2:22 am
Forum: General Discussion
Topic: I just want to make sure that my hw problems are correct.thk
Replies: 3
Views: 5089

Lightning Bolts within Cells

Lightning Bolts within Cells A new nanoscale tool reveals strong electric fields inside cells. http://www.technologyreview.com/Biotech/19841/?a=f Using novel voltage-sensitive ...

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by LL37
Tue Sep 09, 2008 1:45 am
Forum: General Discussion
Topic: Body's electrical current
Replies: 40
Views: 72020
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