The phrase "are often activated" is correct and usable in written English.
It can be used to describe situations where certain processes, systems, or responses are frequently triggered or initiated.
Example: "In stressful situations, the body's fight-or-flight response mechanisms are often activated to prepare for action."
Alternatives: "are frequently triggered" or "are commonly engaged".
Chk1 and Chk2 are often activated by ATM and ATR, resulting in a cascade of activation of further downstream signals.
IP3Rs located at the surface of the ER are often activated via the production of phospholipase C PLCC) following the activation of group I mGluRs.
The middle frontal gyri, in which we detected increased neural activity in our subjects with pre-manifest Huntington's disease, are often activated in tasks requiring executive functions, such as response inhibition (Blasi et al., 2006) and attentional control (Corbetta and Shulman, 2002).
In the first part of this study the physical and morpholoGraphitepects ofelts felt are exploften before activated acthermallyat temperatures of up to 575 °C in air.
Members of the Akt family of serine/threonine kinases are often activated as a result of oncogenic alterations in growth factor receptor signaling.
They are often activated when the weight of an armored vehicle -- or sometimes just a soldier or a Marine walking overhead -- squeezes together a trigger consisting of two buried slats, which closes a circuit that detonates the bomb.
Mutations in this pathway are often activating mutations present in a mosaic state, although germline mutations have also been reported.
Apart from targeting the PI3K/Akt/Ras/Erk pathway, EMT is involved in the AR to therapy, which is often activated during the progression of lung cancer [ 52, 56, 57, 67].
The TORC1 pathway is often activated in human cancers and rapamycin exhibits anti-tumorigenic activity (Guertin & Sabatini, 2007).
ERK1/2 is often activated by growth factors [12], while p38 and SAPK/JNK are stress-activated protein kinases, which respond to cellular stress and inflammatory cytokines [14, 15, 17].
Recent research has shown that when undecided voters looked at images of candidates, their brains' emotional centers were often activated.
