According to measurements taken in 2001, the " Schooner " crater has the highest annual mean concentration of radioactive tritiated water of any area of the NNSS.
12.
Note that one of the first-aid treatments for the intake of tritium ( as tritiated water ) in a human is to give the human plenty of water to drink.
13.
In the label-retention assay, the goal is to mark'immortal'or parental DNA strands with a DNA label such as tritiated thymidine or bromodeoxyuridine ( BrdU ).
14.
Tritium can also be found in metal work in the form of a tritiated rust, this can be treated by heating the steel in a furnace to drive off the tritium-containing water.
15.
Early autoradiographic studies using tritiated PK-11195 ( [ 3H ]-PK11195 ) demonstrated that in the central nervous system ( CNS ) of rodent, it binds primarily to the ependymal walls, choroid plexus, and olfactory bulb.
16.
New N-halogenoacetyl derivatives leading to a strong in situ inhibition of AANAT . The concept behind the mechanism of action of these precursors was studied by following the biosynthesis of the inhibitor from tritiated-BAT in a living cell.
17.
More commonly, autoradiography is used to visualize the locations to which a radioactive substance has been transported within the body, such as cells in S phase ( undergoing DNA replication ) which incorporate tritiated thymidine, or sites to which radiolabeled nucleic acid probes bind in in situ hybridization.
18.
A significant advance was made towards understanding the pharmacology of MLA when Jennings and co-workers showed that MLA also competed with 125 I-?-bungarotoxin ( K i ~ 1 x 10 " 9 M ) and tritiated ( " )-nicotine ( K i ~ 4 x 10 " 6 M ) in a receptor preparation from rat brain.
19.
An example is water, where some of its hydrogen-related isotopologues are : " light water " ( HOH or H 2 O ), " semi-heavy water " with the deuterium isotope in equal proportion to protium ( HDO or 1 H 2 HO ), " heavy water " with two deuterium isotopes of hydrogen per molecule ( D 2 O or 2 H 2 O ), and " super-heavy water " or tritiated water ( T 2 O or 3 H 2 O ), where the hydrogen atoms are replaced with tritium isotopes.
20.
These workers also reported that MLA displaced 125 I-?-bungarotoxin from purified " Torpedo " ( electric ray ) nicotinic acetylcholine receptors ( nAChRs ) with a K i ~ 1 x 10 " 6 M . Similar experiments performed later by Ward et al . showed that MLA bound to nAChRs extracted from human muscle with a K i of ~ 8 x 10 " 6 M; it was also reported that MLA, at a concentration of 10 " 4 M, had no affinity for muscarinic AChRs, as labeled by tritiated quinuclidinyl benzilate, from rat brain.
