The phrase "are more active at" is correct and usable in written English.
It can be used to describe the times or conditions under which a subject exhibits increased activity or engagement.
Example: "Birds are more active at dawn when they begin their morning songs."
Alternatives: "are more engaged during" or "tend to be more lively at".
This network comprises a number of regions that are more active at rest but reduce in activation, or "deactivate," during attention-demanding tasks and comprises mPFC, posterior cingulate cortex, precuneus, and posterior lateral cortices, including pSTS/TPJ and angular gyrus (Gusnard and Raichle 2001; Buckner et al. 2008).
In the infant, all oocyte nuclei are arrested at dictyate and most of the follicles are dormant in the primordial follicle pool; hence, it is not surprising that genes related to nuclear activity and chromatin assembly are more active at this stage.
These sharks are more active at night, with no evidence of seasonal changes in activity or migration.
Cu-based SCR catalysts exhibit higher activity at lower temperatures (<350 °C) while Fe-based catalysts are more active at higher temperatures under "standard" SCR condition (NH3 + NO + O2).
Lysosomal proteases (cathepsins) are more active at acid pH, are released in invasive cancers, and function to proteolytically activate MMPs [ 31].
Told us they are more active at the night hours, and like the dark better.
Although crocodiles tend to be more active at night [73], increased human activities during daylight force individuals in small-sized gueltas to remain hidden, while at night they are able to explore the surroundings of lagoons.
As its common name implies, P. imparis is more active at low temperatures [11], [16], while L. humile activity peaks in the summer.
Further investigations on cultured vascular smooth muscle cells showed a strong stimulating effect on elastin synthesis, especially compound B16, which was more active at 20 μM than diazoxide, a reference ATP-sensitive potassium channel activator.
Thus, for the Hdm2 reporter, the human p53 is more active at 37°C and less active at 25°C while the axolotl p53 activity is less active at 37°C and more active at 25°C.
Ultimately, NHE-1 regulators alter transport activity by altering its affinity for intracellular H+ such that it is more active at a more alkaline pHi [ 69].
