To solve the problem, we need to determine the half-life of a radioactive sample given that its activity drops to one-third of its initial value in 80 minutes. We can use the relationship between activity, time, and half-life in radioactive decay. 1. Understand the Relationship: The ac...
Integration of sensory and molecular inputs from the environment shapes animal behaviour. A major site of exposure to environmental molecules is the gastrointestinal tract, in which dietary components are chemically transformed by the microbiota1 and gut-derived metabolites are disseminated to all organs...
DNA polymerase activity assay The assay evaluates the ability of DNA polymerasea to extend a radioactive-labelled oligonucleotide. The labelled primer was annealed to the template DNA as described (Ram et al, 1009) and subjected to DNA polymerisation reaction. Aliquots were removed and separated on...
16 Because the most dominant neutralizing antibody responses target RBD, this plasma sample was tested for the presence of anti-RBD antibodies by ELISA.15 In line with its neutralization activity, we found that this patient had high levels of anti-RBD IgG as compared with adult neutralizers (...
To limit the probability of a Type I error in which no radioactivity is perceived to be radioactive and the probability of a Type II error in which there is radioactivity but we cannot tell that it is radioactive, there is a minimum value for the expected value of the net count in the...
Cell proliferation was determined using the CellTiter 96® Non-Radioactive Cell Proliferation Assay (MTT) kit (Promega) essentially as described by the manufacturer. PC-3M (300 cells/well), LNCaP (2500 cells/well), LNCaP-abl (5000 cells/well), LNCaP-abl-EnzaR (2500 cells/well), 22Rv1 ...
[Efficiency of treatment for diffuse toxic goiter in relation to the estimated therapeutic activity of radioactive iodine] Forty-eight patients with diffuse toxic goiter (Graves's disease) were treated with radioactive iodine in a dose of 5.3-30.0 mCi. A special formula conside... AV Dreval,...
In a liquid scintillation counter the light output from a liquid scintillation sample containing radioactive isotopes of unknown activity is measured by means of a detector. A pulse height analyzer ha
1. An acid resistant proteinase inhibitor HUSI-type I protein having the biological activity of the CUSI-type I protein and an amino acid sequence of the formula ##STR7##. 2. The acid resistant proteinase inhibitor HUSI-type I protein having the biological activity of the CUSI-type I prot...
Where there is a label, it may be selected from the group consisting of a radioactive atom or stable isotope, a fluorescent molecule, a phosphorescent molecule, a ligand for a receptor, biotin, and avidin.In some embodiments the telomerase substrate lacking a telomeric repeat sequence is 5′-...