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Volume unit

volume unit

A unit of a logarithmic scale for expressing the power level of a complex audio-frequency electrical signal, such as that transmitting music or speech; the power in volume unit's equals the decibels of power above a reference level of one milliwatt, as measured with an appropriate meter.

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... 40 Gram-negative, genetically similar cells that swim only as an intact unit and not as individual cells . Cells that separate from the intact unit ... grows by enlarging the size of its cells and approximately doubling the volume of the whole organism. Cells then divide synchronously, maintaining ...

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by BlahBlahBlah
Thu Jun 27, 2013 1:46 pm
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 27
Views: 41631

How to extract lactic acid bacteria without nutrient broth?

... aliquot should work, if you want dilute it too much (say you will use 1 volume unit per 1 mass unit, i. e. 1 ml of your solution per 1 g of natto)

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by JackBean
Fri Feb 10, 2012 7:37 am
Forum: Microbiology
Topic: How to extract lactic acid bacteria without nutrient broth?
Replies: 11
Views: 6429

Re: beers law concentration calculation

... we say "concentration" we usually mean molarity, or moles per unit volume. Here you are talking about concentration in terms of mass per volume, which I thought ...

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by protchem12
Thu Jan 12, 2012 10:23 pm
Forum: Molecular Biology
Topic: beers law concentration calculation
Replies: 8
Views: 7176

Hard time with homework question

... results in a close packing structure. This means more H2O molecules per unit of volume. In ice, the H2O is forced into a structure via hydrogen bonding and the packing density ...

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by daniel.kurz
Mon Nov 21, 2011 9:48 pm
Forum: General Discussion
Topic: Hard time with homework question
Replies: 6
Views: 6167

Re: Urgent help preparing cycloheximide (CHX)

... second question, you cannot add 300 uM of something, because it's the unit of concentration, so you can either add 300 umol or some volume of 300 uM solution or some volume of some solution, so that you will have 300 uM concentration. ...

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by JackBean
Mon May 23, 2011 8:08 am
Forum: General Discussion
Topic: Urgent help preparing cycloheximide (CHX)
Replies: 6
Views: 7766
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