The
initiation step starts when photoinitiator molecules absorb photons to form photoinitiator free radicals, I*.
The
initiation step involves application of a subcarcinogenic dose of a carcinogen such as 7,12-dimethylbenz[a]anthracene (DMBA), which induces mutations in gene(s) through metabolism to reactive diol-epoxide metabolites and their subsequent covalent binding to DNA forming DNA adducts.
They are believed to be involved in the
initiation step of translation at high temperature and possibly a molecular chaperone.
After the
initiation step is complete, and individuals begin to react to common, everyday chemicals and substances, these reactions are termed "triggering." Triggering is considered to be the second step in the development of MCS.
The number of monomer/oligomer molecules forming a polymer in
initiation step is negligible in the beginning.
Bringing wireless vendors to campus for demonstrations was also part of this
initiation step of the process.
Materials which act as peroxide decomposers retarding the formation of free radicals in the
initiation step are known as preventive antioxidants.
In breast cancer, the
initiation step appears to occur sometime during puberty, during the development of the mammary gland, and does not appear to be related to diet.
In free radical polymerization process, activation energy is used to characterize the kinetics of the
initiation step. This parameter could be measured from the gel time.
The
initiation step of degradation in oxygen produces the radical precursors.
As this coloration starts from the beginning of the polymerization, it can be related to a change in the chemical structure of DMAP in the
initiation step.