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Dictionary » B » Bottom

Bottom

Bottom

1. The lowest part of anything; the foot; as, the bottom of a tree or well; the bottom of a hill, a lane, or a page. Or dive into the bottom of the deep. (Shak)

2. The part of anything which is beneath the contents and supports them, as the part of a chair on which a person sits, the circular base or lower head of a cask or tub, or the plank floor of a ships hold; the under surface. Barrels with the bottom knocked out. (Macaulay) No two chairs were alike; such high backs and low backs and leather bottoms and worsted bottoms. (W. Irving)

3. That upon which anything rests or is founded, in a literal or a figurative sense; foundation; groundwork.

4. The bed of a body of water, as of a river, lake, sea.

5. The fundament; the buttocks.

6. An abyss.

7. Low land formed by alluvial deposits along a river; low-lying ground; a dale; a valley. The bottoms and the high grounds.

8. The part of a ship which is ordinarily under water; hence, the vessel itself; a ship. My ventures are not in one bottom trusted. (Shak) Not to sell the teas, but to return them to london in the same bottoms in which they were shipped. (Bancroft) full bottom, a hull of such shape as permits carrying a large amount of merchandise.

9. Power of endurance; as, a horse of a good bottom.

10. Dregs or grounds; lees; sediment. at bottom, At the bottom, at the foundation or basis; in reality. He was at the bottom a good man. to be at the bottom of, to be the cause or originator of; to be the source of. He was at the bottom of many excellent counsels. (Addison) to go to the bottom, to sink; especially. To be wrecked. To touch bottom, to reach the lowest point; to find something on which to rest.

Origin: oe. Botum, botme, as. Botm; akin to os. Bodom, D. Bodem, OHG. Podam, g. Boden, Icel. Botn, Sw. Botten, dan. Bund (for budn), L. Fundus (for fudnus), gr. (for), Skr. Budhna (for bhudhna), and ir. Bonn sole of the foot, W. Bon stem, base. 257>. Cf. 4th Found, fund.


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cladograms

Let's put it this way. In each case, there was firt organism A (in the very bottom). Then it split into 1 and B. Further B split into 2 and 3. And it doesn't matter how you switch the tree. All the parts are freely rotable.

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by JackBean
Thu Feb 27, 2014 7:01 pm
 
Forum: Evolution
Topic: cladograms
Replies: 7
Views: 323

Cellular Reincarnation

... places that you can reach from each of these valleys. At the edge of Outer valley you can see Neuronburg and Schwann Lake. Deep down there at the bottom of Middle Valley are Kidney Harbor and Leydig. And there, at the far end of Most Proximal Valley lies Hepatocity with Salivaryg Land’s river ...

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by ewartkuijk
Sun Feb 09, 2014 8:25 pm
 
Forum: General Discussion
Topic: Cellular Reincarnation
Replies: 0
Views: 386

centrifugation of hemocytes

... cells (i guess so because many authors used it toward such cells). Even if the cells were lysed, i expect them to be "pelleted" to the bottom of the wells and so when i wash, the cells should stay sticked, unless i resuspend with PBS containing EDTA or heparin... Is it correct? When ...

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by Thom
Tue Jan 28, 2014 10:50 am
 
Forum: Cell Biology
Topic: centrifugation of hemocytes
Replies: 5
Views: 648

centrifugation of hemocytes

... Here is my problem: after centrifugation ( I tried 5 min at 300g, 10 min at 300g and 5 min at 1000g, in eppendorf and with 96-well plates, flat-bottom and round bottom). I took the supernatant off and tried to resuspend the cells with PBS and then performed my classical viability protocol… But ...

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by Thom
Mon Jan 27, 2014 6:41 pm
 
Forum: Cell Biology
Topic: centrifugation of hemocytes
Replies: 5
Views: 648

Re: blank and substrate control give OD reads

You centrifuge the reactions in the 96-well plate and then in that you measure absorbance? How can you do that if the bottom is blocked by your substrate? Can you describe your reactions and controls in more detail including some example absorbances so we can make better idea what ...

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by intandiana
Sun Jan 19, 2014 5:57 am
 
Forum: Molecular Biology
Topic: blank and substrate control give OD reads
Replies: 9
Views: 1163
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