Dictionary » S » Shift



1. The act of shifting. Specifically: The act of putting one thing in the place of another, or of changing the place of a thing; change; substitution. My going to Oxford was not merely for shift of air. (Sir H. Wotton) A turning from one thing to another; hence, an expedient tried in difficalty; often, an evasion; a trick; a fraud. Reduced to pitiable shifts. I 'll find a thousand shifts to get away. (Shak) Little souls on little shifts rely. (Dryden)

2. Something frequently shifted; especially, a woman's under-garment; a chemise.

3. The change of one set of workmen for another; hence, a spell, or turn, of work; also, a set of workmen who work in turn with other sets; as, a night shift.

4. In building, the extent, or arrangement, of the overlapping of plank, brick, stones, etc, that are placed in courses so as to break joints.

5. (Science: chemical) A breaking off and dislocation of a seam; a fault.

6. A change of the position of the hand on the finger board, in playing the violin. To make shift, to contrive or manage in an exigency. I shall make shift to go without him. [They] made a shift to keep their own in Ireland. (milton)

Origin: Cf. Icel skipti. See Shift.

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Fossil rabbits in the Precambrian!

... Otherwise, I don't quite get it. For example, we have found animals living in eras far before the time we believed them to live. Biologists simply shift back the time on the evolutionary clock, saying that they must have evolved before the time we previously thought. If we found a living animal ...

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by Steiner
Sun Dec 22, 2013 8:25 pm
Forum: Evolution
Topic: Fossil rabbits in the Precambrian!
Replies: 0
Views: 1993

Speciation and Evolution

... no way to tell between C and D - a month is enough time to starve all of the birds, and why would we be sure that ANY individuals could make the shift from cactus to orchid at any point in time? There are two possible answers to the second one as well, since the "fossil" is an entire ...

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by Darby
Tue Nov 26, 2013 1:45 pm
Forum: Evolution
Topic: Speciation and Evolution
Replies: 6
Views: 5030

electrophoretic mobility shift assay (EMSA)

I am doing EMSA and after the first try having success, I could never reproduce my results: following the streptavidin-biotin-HRP detection, there are no bands on the blot paper. Compared to the first succesful try, the most striking difference I experience is that while at first, there was a bromop...

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by kk
Fri Nov 08, 2013 12:21 pm
Forum: Molecular Biology
Topic: electrophoretic mobility shift assay (EMSA)
Replies: 1
Views: 1307

Re: Theories - Origin of Life

... is genetics? How then can accumulation of Mutation not a cause for Species Genesis when differences in environmental pressure could cause a shift in Species Population for varying genome composition... Frankly, I'm lost here... Speciation is related to hybridization. According to the biological ...

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by wildfunguy
Sat Sep 28, 2013 5:21 pm
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929220

Transcrption factor-promoter (cis-element) interaction

How about EMSA then? electromobility shift assay also applicable for the same purpose more or less...

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by bravebeaker
Mon Aug 26, 2013 5:45 am
Forum: Molecular Biology
Topic: Transcrption factor-promoter (cis-element) interaction
Replies: 3
Views: 1321
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