The phrase "activities by which" is correct and usable in written English.
It can be used to describe the means or methods through which certain activities are carried out or achieved.
Example: "The report outlines the activities by which the organization aims to improve community engagement."
Alternatives: "methods through which" or "ways in which".
Volitions have been defined as "special mental events or activities by which an agent consciously and actively exercises his agency to voluntarily direct his thoughts and actions" [ 9].
Multiple activities by which citizens earn their bread may, with equal propriety, be denominated an exercise of religion as may preaching or selling religious tracts.
If you think about it, Prep-Do-Review is the fundamental cycle of activities by which effective bosses manage — through a perpetual loop of prep-do-review-prep-do-review.
That's why we do things like regulate who drives cars, put warning signs for pregnant women on wine, demand licenses on dogs, check people for box cutters before they board airplanes — all common-sense activities by which we attempt to regulate the risks of our pleasures.
Emerging data suggest that Tanshinone IIA possesses significant anti-inflammatory activities, by which it ameliorates injury in various organ systems, such as the brain, lung and heart23,24,25,26,27,28,29. Notably, two randomized clinical trials are being undertaken to validate its effect on ischemic heart disease30,31.
Not the creative impulse, but the mechanisms and activities by which these authors found an audience.
Soon enough, dating became an activity by which women tried to transcend class.
This led to an intense flurry of activity, by which I mean four people asked me about it.
Backscatter is a remote sensing activity by which electromagnetic energy is reflected back towards its source by terrain or particles.
The making or finding of the image is an activity by which the poet invites the reader to establish certain relationships, which in turn involve value judgments.
Cause related marketing is a commercial activity by which businesses and charities or causes form a partnership with each other to market an image, product or service for mutual benefit.
