The phrase "activation of the second" is correct and usable in written English.
It can be used in contexts where you are referring to the initiation or triggering of a second element, process, or event.
Example: "The activation of the second phase of the project is scheduled for next week."
Alternatives: "initiation of the second" or "triggering of the second".
On the other hand, P2Y receptors are G protein-coupled metabotropic receptors, which activate phospholipase C PLCC), resulting in activation of the second messengers diacylglycerol and inositol trisphosphate (IP3).
Subsequently, certain plants recognize particular effectors, or their activity, by resistance (R) proteins, which lead to activation of the second layer of defence, effector-triggered immunity (ETI) [ 16, 17].
For each pair of nodes, we tested whether during the time course of brain activity, activation of the first node was followed by activation of the second which in turn was followed by deactivation of the first region, regardless of the time length of activation or deactivation.
TrkA reduces and p75NTR activates β secretase cleavage of the APP, which requires NGF binding and activation of the second messenger ceramide [ 28].
In others, it can be financed partly from abroad through Japan's new credit line of $30 billion and, if necessary, activation of the "second lines of defence" which the major foreign lenders have pledged to the IMF-programme countries.
Moreover, at middle islands, the presence of a stopped "at station" train could hinder vigilance and the perception of the activation of the second pair of controls if pedestrians are transgressing in a hurry to catch the stopped train.
From the ΔE values, one can concluded that the water molecules are easily eliminated from all ligands and the energies of activation for the second stages of decomposition are higher than that of the first stage.
All four mutants activated c-Jun to a similar degree, indicating that activation of the first MAPK phase was independent of morphology.
A muscle time span (in seconds) between the activation of the first muscle to the muscle to be last activated was calculated.
"We will seek to pass this Security Council resolution and the activation of the Fourth Geneva Convention to protect the Palestinian people".
